Hi All. My critique group has been going around and around about this question. What if, in dialog, a character says A-sap, meaning A.S.A.P but saying the letters phonetically. How is that written?
I think I'd consider why it's important how it's pronounced. For instance, I might say something like:
"We need to get those invitations out ASAP," Jane said. She pronounced it "ay-sap," which was even more irritating to Barbara than the fact that she'd used the ridiculous expression at all.
If the pronunciation of it doesn't have any particular impact on the POV character that you can include in this way, then I might think about why it's important to specify the pronunciation at all.
A-sap would mean nothing to me. A.S.A.P. would be clear enough, but might look a tad odd in dialogue.
No idea of context, but alternatives might be 'As soon as possible' 'pronto' 'on the double' 'chop-chop' 'double-quick' or some other phrase
I've heard ASAP pronounced both A-S-A-P and ay-sap, the second more commonly because it's fewer syllables, but I've always written it as ASAP, without the periods. If the pronunciation is important to the plot somehow it would be a good idea to clarify in the narration that so-and-so pronounces it one way or the other, but if it's not important I'd just have so-and-so say "ASAP" and leave it at that.