SYN: Help, aid, countenance, support, abettance, protection, maintenance, coadjutorship.
ANT: Resistance, obstruction, opposition, counteraction, antagonism, drawback, clog, preventive.
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KEY: Assistant.
SYN: Helper, aider, attendant, coadjutor, auxiliary, ally, associate, contributor, partner, confederate.
ANT: Hinderer, opposer, rival, foe, antagonist.
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KEY: Associate.
SYN: Companion, friend, ally, coadjutor, consort, helpmate, comrade, partner.
ANT: Rival, alien, foe, antagonist.