Thus it is with the two articles a and an. A and an are not followers, people. They don’t follow the flock of rules. They follow rules of sound instead of spelling. (OK, so they are followers, but they follow the edgy, nonconformist rules, so there.) And really, that’s perfectly OK with me. The sound makes it easier to figure out which one is correct for a particular sentence. Here’s the gist:

A: Use a before consonant sounds (a frog, a home, a historic event, a unique plan, a one-time offer, a 4-3 split). Note that just because the following word begins with a vowel or numeral doesn’t mean that an is the correct choice. That h in historic is a sounded h. Remember: It’s the sound of that first letter, not the first letter itself.

An: Use an before vowel sounds (an apple, an ergonomic chair, an honorable mention, an NBC affiliate, an 85-year-old turtle). Note that just because the following word begins with a consonant or numeral doesn’t mean that a is the correct choice. That h in honor is a silent h. Remember: It’s the sound of that first letter, not the first letter itself.

An 85-year-old turtle is still a spring chicken (life expectancy 200 years).

Happy trails!

SAK