Are you looking for ways to increase your email open rates? Want to use more compelling copy in your email marketing subject lines?

CoSchedule share the best words to use in your subject lines in this infographic.

Here’s what they cover:

• The best words to use
• The effect of numbers
• Best times to email
• Best days to email
• Brand voice chart

Check out the infographic for more detail.

 

Email marketing remains one of the most effective ways to engage with your audience, but it all starts with getting your recipients to open your emails. Your email subject line is the first thing people see, and it plays a crucial role in their decision to open or ignore your message.

One powerful technique to boost open rates is to incorporate persuasive power words in your subject lines.

In this comprehensive guide, we’ll explore over 100 power words that can captivate your audience and inspire them to click. We’ll also delve into the impact of numbers, the best times and days to send emails, and how to align these strategies with your brand voice.

 

The Best Words to Use

Your email subject line should grab your readers’ attention and pique their interest instantly. Power words are potent because they evoke emotions, curiosity, and urgency.

Here’s a list of some of the best power words to use in your email subject lines:

• Exclusive: People love to feel special and part of an exclusive club.
• Limited: Create a sense of urgency by indicating a limited time or quantity.
• Free: Everyone appreciates getting something for nothing.
• New: Novelty can spark curiosity and interest.
• Proven: Instill confidence by emphasizing credibility and results.
• Guaranteed: Offer reassurance and reduce perceived risk.
• Save: Highlighting savings or discounts can be irresistible.
• You/Your: Personalize your subject lines to make the recipient feel involved.
• Easy: Promise simplicity and convenience.
• Secret: People love to discover hidden knowledge.
• Instant: Tap into the desire for immediate gratification.
• Win: Appeal to the competitive spirit in your audience.
• Discover: Encourage exploration and curiosity.
• Exclusive Offer: Combines exclusivity and an offer for added impact.
• Results: People want to know what they’ll achieve.
• Bargain: Highlighting a good deal can attract value-conscious consumers.
• Hurry: Create urgency with a limited-time offer.
• Unmissable: Suggest that the recipient can’t afford to ignore your email.
• Innovative: Appeal to those interested in the latest advancements.
• Fascinating: Spark curiosity with something intriguing.
• Sensational: Convey that what’s inside is remarkable.
• Surprise: Everyone loves a pleasant surprise.
• Challenge: Engage your audience’s competitive nature.
• Upgrade: Suggest improvement or enhancement.
• Sneak Peek: Offer a glimpse of what’s to come.
• Revolutionary: Imply that your product or idea is a game-changer.
• Effortless: Promise minimal work or difficulty.
• Exclusive Access: Create allure through limited access.
• Breathtaking: Describe something stunning or awe-inspiring.
• Savings: Highlight potential monetary benefits.
• Now: Emphasize the immediacy of your offer.
• Valuable: Convey the worth of what’s inside.
• Breakthrough: Suggest a significant advancement.
• Secrets Revealed: Evoke curiosity with the promise of hidden knowledge.
• Game-Changing: Imply your product or service will disrupt the status quo.
• Effortless: Promise ease and simplicity.
• Limited-Time: Create urgency by emphasizing a short window of opportunity.
• Ultimate: Suggest the highest level of quality.
• Proven Results: Reinforce credibility with evidence of success.
• Unique: Emphasize rarity and distinctiveness.
• Unbelievable: Pique curiosity by suggesting something incredible.
• Opportunity: Frame your email as a chance for your recipient.
• Spectacular: Describe something remarkable or exceptional.
• Now or Never: Convey a sense of urgency and exclusivity.
• No Obligation: Remove the perceived risk of opening the email.
• Limited Supply: Indicate scarcity to encourage action.
• One-Time Offer: Suggest that this opportunity won’t come again.
• Risk-Free: Eliminate concerns about potential drawbacks.
• Extraordinary: Describe something truly exceptional.
• Money-Back Guarantee: Offer reassurance and confidence.
• Gift: People love receiving unexpected gifts.
• Special Invitation: Make your recipient feel honored and valued.
• Last Chance: Create urgency with a closing opportunity.
• Priceless: Suggest that what’s inside is invaluable.
• Lifetime: Imply lasting benefits or offers.
• VIP: Make your recipient feel like a VIP.
• Breakthrough: Convey a significant leap forward.
• Rare: Highlight the scarcity or uniqueness of what’s inside.
• Don’t Miss Out: Encourage action by implying the value of your email.
• 100% Guarantee: Offer complete confidence in your product or service.
• Untapped: Suggest undiscovered potential.
• Mind-Blowing: Imply that what’s inside is astonishing.
• No Risk: Alleviate fears of negative consequences.
• Exclusive Opportunity: Combine exclusivity and opportunity.
• Golden: Convey something of immense value.
• First-Time: Emphasize a unique occurrence or offer.
• Immediate Access: Highlight the speed of access.
• Insider: Appeal to the desire for inside knowledge.
• Zero Cost: Eliminate concerns about expenses.
• Extra Bonus: Offer more than expected.
• Cutting-Edge: Suggest the latest advancements.
• Once-in-a-Lifetime: Create urgency with rarity.
• Top-Secret: Evoke intrigue and curiosity.
• Epic: Describe something grand and memorable.
• Double: Suggest double the value or benefits.
• Untold: Convey hidden or untapped potential.
• Red Hot: Indicate something trending or highly desirable.
• Elite: Imply exclusivity and prestige.
• Remarkable: Describe something worthy of attention.
• For You: Personalize your offer for the recipient.
• Hidden: Evoke curiosity with the promise of concealed information.
• Insane: Suggest something extraordinary or unbelievable.
• No Strings Attached: Eliminate perceived obligations.
• Massive: Emphasize size, scale, or impact.
• Sneak Preview: Offer a glimpse of what’s coming.
• High-Octane: Convey intensity or excitement.
• Revamp: Suggest a significant improvement or change.
• Peak Performance: Appeal to those seeking the best.
• Coveted: Indicate something highly sought after.
• Price Slash: Highlight significant price reductions.
• Golden Opportunity: Convey exceptional value.
• Skyrocket: Suggest rapid growth or improvement.
• No Catch: Eliminate concerns about hidden conditions.
• Insider Secrets: Evoke intrigue with concealed knowledge.
• Outstanding: Describe something exceptionally good.
• For a Limited Time: Create urgency with time constraints.
• Unearth: Suggest hidden or undiscovered benefits.
• Explosive: Convey a sudden burst of something.
• Unlock: Imply access to something valuable.
• Rock-Bottom: Highlight the lowest possible price.
• In Demand: Indicate high popularity or desire.
• Never Before: Emphasize novelty or rarity.
• Groundbreaking: Suggest a pioneering idea or product.
• For Your Eyes Only: Create intrigue and exclusivity.
• Untouched: Imply pristine or unspoiled benefits.
• Boom: Convey a sudden, powerful impact.
• No Gimmicks: Eliminate concerns about deceptive tactics.
• Insider Info: Appeal to curiosity about exclusive knowledge.
• World-Class: Suggest top-tier quality or performance.
• Exquisite: Describe something of exceptional beauty or quality.
• For a Few: Create exclusivity through limited availability.
• Top-Notch: Emphasize superior quality.
• Hottest: Indicate something currently trending or popular.
• Never-Seen-Before: Emphasize uniqueness.
• Pioneer: Suggest being at the forefront of something.
• Behind the Scenes: Evoke curiosity about the inner workings.
• Unbeatable: Convey superiority or invincibility.
• Front-Row: Create a sense of being in the spotlight.
• Supercharge: Suggest a significant boost or enhancement.
• For the Elite: Appeal to exclusivity and prestige.
• Untapped Potential: Highlight undiscovered opportunities.
• Megastar: Convey immense importance or popularity.
• No Questions Asked: Eliminate concerns about inquiries.
• Insider Access: Appeal to the desire for exclusive entry.
• World-Renowned: Imply global recognition and acclaim.
• Exclusively Yours: Make the recipient feel special.
• Picture-Perfect: Describe something ideal or flawless.
• For a Handful: Create exclusivity through limited availability.
• Best-in-Class: Emphasize being the best of its kind.
• On Fire: Indicate high energy, excitement, or popularity.
• Trailblazer: Suggest being a pioneer or innovator.
• Behind Closed Doors: Evoke curiosity about secrecy.
• Unlimited: Convey boundless possibilities.
• Mega: Emphasize size, magnitude, or significance.
• No-Fuss: Eliminate concerns about complications.
• Inside Scoop: Appeal to the desire for exclusive information.
• Worldwide: Imply global reach and impact.
• Exclusivity Awaits: Build anticipation for something special.
• Top of the Line: Emphasize superiority.
• Blazing: Indicate rapid progress or success.
• Pioneering Spirit: Appeal to those who value innovation.
• Behind the Curtain: Evoke curiosity about what’s hidden.
• Unleash: Suggest the release of something powerful.
• Elevate: Convey improvement or advancement.
• Virtuoso: Imply exceptional skill or talent.
• Exclusive VIP: Appeal to the desire for exclusivity.
• Uncharted: Highlight the unknown and undiscovered.
• Meteor: Convey sudden, intense impact or success.
• No-Hassle: Eliminate concerns about difficulties.
• Inside Track: Appeal to the desire for insider information.

These power words can be your secret weapons in crafting compelling email subject lines that encourage recipients to open your emails.

 

The Effect of Numbers

Incorporating numbers into your email subject lines can have a powerful impact on open rates. Numbers provide clarity, specificity, and a sense of structure, making your subject line more appealing.

Here’s how to use numbers effectively:

• Lists: People love lists. Use numbers to indicate a list of valuable insights or tips, such as “5 Strategies for Boosting Productivity.”
• Statistics: Incorporate relevant statistics to add credibility and curiosity. For example, “87% of Customers Love This Feature.”
• Countdowns: Create urgency with countdowns, like “Only 3 Days Left to Save!”
• Benefits: Highlight the number of benefits or features your product offers, such as “10 Benefits of Our Premium Membership.”
• Pricing: Specify the price or discount percentage in your subject line, such as “50% Off All Items Today.”
• Steps: Use numbers to break down a process or guide, like “7 Easy Steps to Master Email Marketing.”
• Years: Mention the number of years in business or industry experience to establish trust, such as “20 Years of Expertise at Your Service.”
• Customer Reviews: Share the number of positive reviews or testimonials, like “Over 1,000 Happy Customers.”
• Events: Promote events by specifying the date or countdown, such as “Join Us on September 30th for a Live Webinar.”
• Awards: Highlight awards won or nominations, like “Winner of the 2023 Best Product Award.”

Numbers add a layer of credibility and structure to your subject lines, making them more appealing and engaging.

 

Best Times to Email

Timing is crucial in email marketing. Sending your emails at the right time can significantly impact open rates.

While there’s no one-size-fits-all answer, several studies and analyses have identified general guidelines for the best times to send emails:

• Tuesday and Thursday: Midweek days tend to have higher open rates as people are settled into their workweek routines.
• Morning: Emails sent in the morning, around 10-11 AM, often perform well. It’s a time when people are checking their inboxes after starting their workday.
• Lunchtime: Sending emails during lunch breaks, around 12-1 PM, can catch recipients during downtime.
• Early Evening: Emails sent between 6 PM and 8 PM can be effective, especially for B2C emails, as people unwind and check their personal inboxes.
• Weekends: Surprisingly, some industries experience higher open rates on weekends. It’s worth testing this for your specific audience.
• Avoid Mondays: Mondays can be overwhelming for many, with overflowing inboxes from the weekend. It’s often best to avoid this day.

Remember that these are general guidelines, and your audience may have unique behaviors. A/B testing your email send times is a valuable practice to determine the ideal timing for your specific subscribers.

 

Best Days to Email

Choosing the right day to send your emails can also impact open rates. While Tuesday and Thursday are generally strong choices, consider these factors when deciding on the best days:

• Weekdays: Tuesday, Wednesday, and Thursday tend to be the most reliable days for email opens.
• Monday: While Monday is generally less favored due to the rush of the workweek, it can still be effective for certain B2B campaigns.
• Friday: Fridays can be hit or miss, with some people focused on wrapping up the week and others open to weekend plans.
• Weekends: For specific niches or promotions, weekends can surprise with higher engagement, especially for B2C audiences.
• Avoid Holidays: Be mindful of holidays and long weekends, as email open rates may drop during these times.
• Segmentation: Consider segmenting your list and sending emails on different days based on recipient preferences and behavior.

Ultimately, the best day to send emails depends on your audience and the nature of your message. Regularly analyze your email performance metrics to refine your email scheduling strategy.

 

Brand Voice Chart

Aligning your email subject lines with your brand voice is essential for maintaining consistency and building trust with your audience.

Here’s a brand voice chart to help you match your power words with your brand’s personality:

• Professional: Expertise, Trusted, Solutions
• Friendly : Connect, Together, Fun
• Innovative: Cutting-Edge, Visionary, Unique
• Authoritative: Leading, Pioneer, Exclusive
• Casual: Easy, Chill, Free
• Upbeat: Exciting, Thrilling, Joyful
• Serious: Critical, Vital, Conclusive
• Empowering: Empower, Transform, Master
• Trustworthy: Reliable, Proven, Secure
• Creative: Imaginative, Artistic, Dynamic

Customize this chart to fit your brand’s unique voice and values. Remember that consistency in your brand voice across all communication channels, including email, is key to building strong and lasting relationships with your audience.

 

Conclusion

In conclusion, crafting compelling email subject lines is a combination of using power words that trigger emotions, incorporating numbers for specificity, timing your emails effectively, and aligning your messaging with your brand voice.

Experiment with different combinations, test the results, and refine your approach to maximize your email open rates and engagement.

By leveraging these strategies and power words, you’ll be well on your way to creating subject lines that captivate your audience and boost your email marketing success.