Reactions rhymes with:
abstractions, action's, actions, attractions, classactions, contractions, distractions, exactions, extractions, factions, fractions, infractions, interactions, satisfactions, transaction's, transactions
Reactions sounds like:
reacting, recasting, receding, recitations, reciting, rejecting, rejections, requesting, reseting, residence, residences, residencies, residency, residing, resistance, resistence, resisting, restating, resting, resuscitating, ricocheting, rightness, rightwing, roasting, rocketing, rostenkowski, rostenkowski's, rusting