I can’t seem to help myself. I get my dander up when confronted by improper use of idiomatic English (or even just plain, old correct English) expressions by people who ought to know better.

A few on my mind lately include:

  • One does not “home in on” something. One “hones in on” it. [UPDATE: I have learned this is not exactly right. Both are correct. See comments below.]
  • One does not “take a different tact.” One “takes a different tack.”
  • “Alumni” is a plural word, and its singular is not “alum.” Someone is neither “an alumni” nor “an alum” of an institution. One is an alumnus (male) or an alumna (female). When gender is in doubt, the masculine is used. No, that’s not sexist, it’s grammar.

Whew! Glad I got that off my chest!

What are your pet grammar peeves? Add them in the comments.