SYN: Advertise, inform, impart, make known, divulge, teach, notify, apprise, advise, tell.
ANT: Misinform, deceive, delude, mislead, misguide, hoodwink.
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KEY: Acquaintance.
SYN: Knowledge, intimacy, familiarity, experience, companionship.
ANT: Ignorance, unfamiliarity, inexperience. It has also the colloquial meaning of a person with whom one is acquainted.
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KEY: Acquiesce.
SYN: Assent, concur, repose, agree, yield, be resigned, comply.
ANT: Dissent, demur, object.