Rsvp is pronounced are-ess-vee-PEE (IPA /ˌɑːrɛsviːˈpiː/). Spell each letter — 'R-S-V-P' as four separate sounds.
IPA: /ˌɑːrɛsviːˈpiː/
Syllables: are · ess · vee · PEE
Common ESL mistake: Learners try to say it as a word like 'rissvip'.
Tip: Spell each letter — 'R-S-V-P' as four separate sounds.