Colliding rhymes with:
gliding, sliding, abiding, biding, chiding, coinciding, confiding, deciding, deriding, dividing, gliding, guiding, hiding, presiding, providing, residing, riding, siding, sliding, striding, subsiding, tiding, widing
Colliding sounds like:
caladiums, caledonian's, clayton's, clothing, clotting, cloudiness, clouding, coagulating, coalition's, coalitions, coldness, colluding