NOTE: The Confusing Words website no longer exists.
Try searching the Common Errors in English Usage website. Or, search in Google for the confusing pair, for example, “capitol vs. capital” to check if you’re right.
The Confusing Words website clarifies the differences between sets of two or more frequently confused words. Visit it when you’re confused about which word to use.
According to the website, some classic pairs of misunderstood or misused words include:
- Affect vs. effect
- Capitol vs. capital
- Affluent vs. effluent — I’ll bet there aren’t any financial advisors who make this mistake!
- Atheist vs. agnostic
I read about this in Daphne Gray-Grant’s Power Writing e-newsletter.
March 23, 2018: I updated this post to reflect the disappearance of the Confusing Words website.