Definitely indefinite, or “Which article should I use?”

I knew I’d written about this before. Here’s the proof. However, I’ll write about it again because it keeps coming back.

The issue at hand is whether one uses a or an before a given abbreviation. I’m sure that you were drilled on this in school (I sure was) by a teacher who insisted that you use a before a consonant and an before a vowel.

That’s partly correct. Continue reading “Definitely indefinite, or “Which article should I use?””