Did you know that picking the right single word or simple phrase in your website’s copy/text can increase conversions by more than 100%? Here’s a list  words broken down by application that are proven to boost visitor actions (check out the original article by Buffer, definitely worth the read).

The 5 most persuasive words in the English language

  • You
  • Free
  • Because
  • Instantly
  • New

Use these in: words: Calls-to-action, headlines, email subject lines, headings, opening sentences and paragraphs

The 20 most influential words, via David Ogilvy

  • Suddenly
  • Now
  • Announcing
  • Introducing
  • Improvement
  • Amazing
  • Sensational
  • Remarkable
  • Revolutionary
  • Startling
  • Miracle
  • Magic
  • Offer
  • Quick
  • Easy
  • Wanted
  • Challenge
  • Compare
  • Bargain
  • Hurry

Use these in: Headlines, bullet points, subject lines

Exclusively exclusive phrases (12 special words/phrases)

  • Members only
  • Login required
  • Class full
  • Membership now closed
  • Ask for an invitation
  • Apply to be one of our beta testers
  • Exclusive offers
  • Become an insider
  • Be one of the few
  • Get it before everybody else
  • Be the first to hear about it
  • Only available to subscribers

Use these in: Signup forms, links, calls-to-action, subheads

Phrases to prompt action via implying scarcity (Only 9 words/phrases)

  • Limited offer
  • Supplies running out
  • Get them while they last
  • Sale ends soon
  • Today only
  • Only 10 available
  • Only 3 left
  • Only available here
  • Double the offer in the next hour only

Use these in: Headings, promo copy

Proven power words (48 words/phrases)

  • Improve
  • Trust
  • Immediately
  • Discover
  • Profit
  • Learn
  • Know
  • Understand
  • Powerful
  • Best
  • Win
  • Hot Special
  • More
  • Bonus
  • Exclusive
  • Extra
  • You
  • Free
  • Health
  • Guarantee
  • New
  • Proven
  • Safety
  • Money
  • Now
  • Today
  • Results
  • Protect
  • Help
  • Easy
  • Amazing
  • Latest
  • Extraordinary
  • How to
  • Worst
  • Ultimate
  • Hot
  • First
  • Big
  • Anniversary
  • Premiere
  • Basic
  • Complete
  • Save
  • Plus!
  • Create

Use these in: Email subject lines, headlines, calls-to-action

Words and phrases to make readers feel safe and secure (28 authentic words/phrases)

  • Anonymous
  • Authentic
  • Backed
  • Best-selling
  • Cancel Anytime
  • Certified
  • Endorsed
  • Guaranteed
  • Ironclad
  • Lifetime
  • Moneyback
  • No Obligation
  • No Questions Asked
  • No Risk
  • No Strings Attached
  • Official
  • Privacy
  • Protected
  • Proven
  • Recession-proof
  • Refund
  • Research
  • Results
  • Secure
  • Tested
  • Try before You Buy
  • Verify
  • Unconditional

Use these in: Payment forms, signup forms, testimonials

Cause-and-effect conveyors (10 words/phrases)

  • Accordingly
  • As a result
  • Because
  • Caused by
  • Consequently
  • Due to
  • For this reason
  • Since
  • Therefore
  • Thus

Use these in: Closing paragraphs, transitions

Prompt readers to join a community (3 words/phrases)

  • Join
  • Become a member
  • Come along

Use these in: words: Email signups, trial offers, in-app messaging

For social / shareable content (9 words/phrases)

  • Secret
  • Tell us
  • Inspires
  • Take
  • Help
  • Promote
  • Increase
  • Create
  • Discover

Use these in: Social media updates