1 syllable:
cupps, cups, dcp ips, krupp's, krups, pg tips, pups, scaups, scups, suppes, trups, up's, whups

2 syllables:
back-ups, backups, blow-ups, blowups, boot-ups, break-ups, build-ups, buildups, call-ups, checkups, chin-ups, cleanups, close-ups, closeups, creamcups, cutups, dustups, eggcups, eyecups, flare-ups, foul-ups, freeze-ups, fringe cups, getups, grown-ups, grownups, hang-ups, hangups, hickups, hold-ups, holdups, hook-ups, hookups, ips/ups, lace-ups, lay-ups, lineups, linkups, lockups, make-ups, makeups, markups, mashups, mix-ups, mock-ups, mockups, paste-ups, pick-ups, pickups, pileups, pin-ups, pinups, pop-ups, popups, prenups, pull-ups, punch-ups, push-ups, pushups, rave-ups, roll-ups, roundups, run-ups, runups, screw-ups, screwups, send-ups, set-ups, setups, shakeups, shapeups, sit-ups, situps, skrew-ups, smash-ups, smashups, speedups, stand-ups, start-ups, startups, stickups, teacups, tie-ups, tittups, top-ups, toss-ups, tossups, tune-ups, walk-ups, warm-ups, warmups, wind-ups, workups, write-ups

3 syllables:
buttercups, cover-ups, coverups, follow-ups, higher-ups, wickiups

4 syllables:
johnny-jump-ups

1 syllable:
crux, flux, tux, ducks, shucks, bucks, lux, klux, knucks, trucks

2 syllables:
deluxe, conducts

3 syllables:
self-destruction, neutron flux

4 syllables:
radiant flux, luminous flux, magnetic flux