Words that Rhyme with crux
1 Syllable Words
bruck's, brucks, buchs, buck's, bucks, chuck's, clucks, duck's, ducks, ducks', dux, flux, fucks, gluck's, hucks, hux, klux, lox, lucks, luks, lux, pluck's, plucks, rucks, rux, shucks, sucks, szucs, truck's, trucks, trucks', tucks, tuks, tux, yuks
2 Syllable Words
deluxe, dumptrucks, influx, roebuck's, starbuck's, starbucks
3 Syllable Words
megabucks
Definition of crux
n. Anything that is very puzzling or difficult to explain.