Briefs rhymes with:
debriefs, debriefs, reefs, bas-reliefs, beefs, beliefs, chief's, chiefs, chiefs', debriefs, fiefs, hafif's, leafs, motifs, o'keeffe's, reefs, reliefs, thief's
Briefs sounds like:
barb's, barbakow, barbash, barbecue, barbecue's, barbecues, barbeque, barbeques, barbie's, barbies, barbosa, barboza, barbs, barfuss, barovic, barovsky, berbick, bierbusse, brabec, braves, braves', brebach, brevig, brevik, bribes, briefcase, briefcases, brobeck, brubeck, burbach, burback, burbage, burpees