acknowledge synonyms:
verb
1 accede, accept, acquiesce, admit, affirm, agree, allow, concede, confess, con firm, declare, endorse, grant, own up to, profess, yield.
Opp DENY.
2 acknowledge a greeting. answer, notice, react to, reply to, respond to, return. 3 acknowledge a friend. greet, hail, recognize, salute, inf say hello to.
Opp IGNORE.