I’ve read articles and stories where someone is described as “a naif” but oddly I’ve only seem the use of “naïf” as quoted below in written form I have never heard it used to describe a person when used in everyday speechas quoted below.
Being the dope and all, I have to chime in to say it’s not an umlaut. It’s a diaresis: two dots placed over a vowel which follows another vowel, to indicate they are each pronounced. Naif would be one syllable, naïf has two.
I would, too. I can believe how people are butchering the English language.
A propos of the OP’s title: I really thought the thread was going to be about something like the way some people use “dude” as a pronoun. E.g., “A strange guy started talking to me on the subway today. Dude was crazy!”