For or To? The Complete Guide to Getting It Right

A non-native English speaker carefully writes a birthday card that reads, “This gift is to you,” and hands it over ...
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Mosquitos or Mosquitoes? The Complete Guide to Getting It Right

It’s peak summer, and a family is debating what to buy at the store: bug spray to keep the “mosquitoes” ...
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Foci or Focuses? The Complete Guide to Getting It Right

A mathematics professor draws an ellipse on the whiteboard and casually mentions its two “foci,” expecting students to already know ...
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Personalized or Personalised: Which One Should You Use?

An online gift shop based in London sells “personalised” mugs, phone cases, and jewelry to customers across the UK. A ...
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Authorization or Authorisation? Correct Spelling Guide

A patient in London waits for their doctor’s office to secure “authorisation” from the National Health Service before a specialist ...
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Summarize or Summarise? The Complete Guide to Getting It Right

A student in Chicago finishes a research paper and asks their AI writing assistant to “summarize” the findings into a ...
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Behavioural or Behavioral? The Complete Guide to Getting It Right

A psychology student in London writes an essay about “behavioural therapy,” submits it confidently, and receives full marks. A psychology ...
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Scale or Balance? The Complete Guide to Getting It Right

Step into a kitchen, a gym, or a high school chemistry lab, and you’ll likely encounter two very similar-sounding tools: ...
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Present or Gift? The Complete Guide to Getting It Right

It’s a birthday party, and someone hands over a neatly wrapped box, saying, “Here’s your present!” A few minutes later, ...
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Customer or Client? The Complete Guide to Getting It Right

Walk into a coffee shop and the person behind the counter will almost certainly call you a “customer.” Walk into ...
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