In Question marks^x, Glottals^x

You recall perfectly. The IPA symbol for a glottal stop is a question mark ? but without the dot at the bottom.

The glottal stop is used in American English, yes, but not in the same places, necessarily, as for British English. It's used (for some speakers) just before the final unreleased "t" when "t" is final after a vowel. "That's it!" (The final "t" is rendered by a glottal stop and/or an...