KEY: Acquaintance.
SYN: Knowledge, intimacy, familiarity, experience, companionship.
ANT: Ignorance, unfamiliarity, inexperience,{well_has_also_the_colloquial_meaning_of_a_person_with_whom_one_is_acquainted}.

• Application, [See DILIGENCE]
• Apply
• Appoint
• Apportion
• Apportionment, [See APPORTION]
• Apposite
• Appraise
• Appreciate
• Apprehend
• Apprehension, [See APPREHEND]
• Apprise, or, Apprize
• Approach
• Approbation
• Appropriate, [See FIT]
• Approval, [See APPROBATION]
• Approve
• Approximate
• Appurtenant
• Apt
• Aptitude
• Arbiter
• Arbitrary
• Arbitrate
• Archaic, [See ANCIENT]
• Architect