The Oxford Thesaurus An A-Z Dictionary of Synonyms - tax n.

1) levy, impost, duty, tariff, assessment, tribute, toll, excise, customs, charge, contribution, Archaic scot, tithe, Brit octroi, cess, rate(s) , dues: Most people try to pay the lowest taxes they can get away with. 2) onus, burden, weight, load, encumbrance, strain, pressure: The admission of fifty new children put a heavy tax on the school's resources. --v. 3) assess, exact, demand, charge, impose or levy a tax (on) , Archaic tithe: If the government doesn't tax citizens, where will the money come from? 4 burden, strain, put a strain on, try; load, overload, stretch, exhaust; encumber, weigh down, saddle, Brit pressurize, US pressure: This misbehaviour is really taxing my patience. Our meagre resources were taxed to the limit. Mother was taxed with the responsibility of caring for us.