say it: uh-TEN-dee
attendee is a noun meaning "a person who is present and participates in a meeting". It carries one recorded sense.
a person who is present and participates in a meeting
“he was a regular attender at department meetings”
“the gathering satisfied both organizers and attendees”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for attendee come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.