Decrease rhymes with:
crease, gilcrease, increase, kilcrease, audris, breece, caprice, crease, devries, edris, freise, friess, gilcrease, grease, greece, griess, increase, kilcrease, maryse, maurice, patrice, preece, priess, rease, reece, reese, reise, rhys, riess, treece, vantrease, vantreese
Decrease sounds like:
dacruz, daggers, daycares, decesaris, decker's, decorous, decourcy, decoursey, decreases, decrees, decries, degeorge, degrace, degrasse, degrazia, degrees, desires, desirous, desroches, dichroic, diego-garcia, diggers, digiorgio, digrazia, digress, digresses, disagrees, discharge, discharges, discourage, discourages, discourse, discourses, disgorge, disgrace, dishwashers, dockers, dockiers, dodger's, dodgers, dodgers', dogears, dossiers, dzhokhar's