adj.
VERBS
▪ be
▪ remain
▪ consider sth as , hold sth ( AmE ), keep sth , treat sth as
▪
The affair must be kept ~.
▪
Information about prices is to be treated as ~.
ADVERB
▪ highly
▪ absolutely , completely , strictly , totally
▪
The findings are strictly ~.
▪ commercially ( BrE )
▪
commercially ~ data
Confidential is used with these nouns: ↑ advice , ↑ correspondence , ↑ document , ↑ enquiry , ↑ file , ↑ information , ↑ letter , ↑ material , ↑ memo , ↑ memorandum , ↑ nature , ↑ record , ↑ report , ↑ source