What is another word for "reaction"?

Roget's Thesaurus (1911) lists these synonyms for "reaction": accusation, action, against, although, and, another, antagonism, antagonistic, antagonize, back, beat, beau, bit, biter, block, blow, boomerang, bounce, bound, can, cap, catch, check, clash, coefficient, coin, collision, compensate, compensation, compliment, conflict, conflicting, contrariety, contrary, contravene, contrecoup, counter, counteract, counteraction, counterplot.