1 syllable:
ab, bab, babb, cab, crab, crabb, crabbe, dab, dabbe, drab, fab, flab, fstab, gab, glab, grab, grabb, grabbe, jab, jmpab, k-tab, knab, knabb, krabbe, lab, labbe, m'zab, mab, mb-lab, nab, nabb, prab, r3hab, rab, rabb, sabb, scab, schab, scrab, slab, stab, tab, tabb

2 syllables:
abfab, aftab, ahab, ahlab, aintab, alt-tab, arnab, backstab, blue crab, cantab, chemlab, chem lab, chenab, cielab, clipgrab, cohab, colab, collab, confab, conflab, corn dab, crontab, dahab, detab, dorab, estab, eyelab, fontlab, gamelab, gitlab, glass-crab, godthab, golab, goodtab, group ab, habnab, halab, headcrab, hijab, ixtab, jallab, keftab, king crab, kolab, ktechlab, kuttab, lablab, lolab, lortab, macnab, madhhab, mathlab, matlab, mcnab, mcnabb, meshlab, mihrab, milab, monab, mplab, mustahabb, nadab, nodab, nohab, opcab, pea crab, prefab, punjab, rahab, rebab, rock crab, sand dab, scilab, sealab, shahab, sheep-scab, shehab, sketchfab, skinlab, skylab, smack-dab, snolab, softlab, sohrab, spacehab, spacelab, stone crab, taarab, thinglab, transhab, type ab, vailab, vocab, wavelab, wheat scab, wild crab, x-fab

3 syllables:
abacab, asvab, bafflegab, bechtel crab, bio lab, buster crabbe, cherry crab, dizahab, ecolab, elugelab, ery-tab, fast of ab, fermilab, focal-jmlab, garland crab, genelab, giant crab, hansom cab, hermit crab, horseshoe crab, inittab, jonadab, jonah crab, lady crab, lib-lab, line of gab, mantis crab, mezahab, minicab, minilab, minitab, movielab, muzarab, mymathlab, ninth of ab, oceanlab, olive-drab, olive drab, omnitab, openhab, oyster crab, pan-arab, pedicab, physics lab, prairie crab, rpa-abb, russet scab, science lab, secretlab, smash-and-grab, spider crab, swimming crab, symbolab, taxicab, unilab, zeptolab

4 syllables:
abinadab, ah-muzen-cab, ahinadab, alaska crab, aminadab, amminadab, audiolab, calico crab, cancer the crab, chemistry lab, fiddler crab, flowering crab, iowa crab, japanese crab, jehonadab, kaspersky lab, radiolab, stereolab

5 syllables:
alaskan king crab, alaska king crab, asian horseshoe crab, basiliximab, biology lab, english lady crab, hydrocortistab, isatuximab, siberian crab

7 syllables:
american lady crab, european spider crab

1 syllable:
cap, chap, clap, crap, flap, frap, frappe, gap, hap, knapp, lap, map, nap, pap, rap, sap, scrap, slap, snap, strap, tap, trap, wrap, yap, zap

2 syllables:
chin strap, cloth cap, cold snap, death cap, earflap, entrap, enwrap, flat cap, fool's cap, gift-wrap, gift wrap, golf cap, lens cap, mantrap, pace lap, peaked cap, recap, root cap, sand trap, shrinkwrap, sketch map, ski cap, small cap, spark gap, speed trap, steel trap, suntrap, tent flap, trade gap, unstrap, unwrap, watchstrap, watch cap, wind gap

3 syllables:
baseball cap, bathing cap, bishop's cap, blasting cap, booby trap, brandysnap, bubble wrap, contour map, cradle cap, gingersnap, inky cap, iron trap, jockey cap, lagniappe, landing flap, plastic wrap, pocket flap, relief map, sailor cap, saran wrap, service cap, shoulder strap, shower cap, solar trap, spinal tap, stocking cap, swimming cap, take a crap, thinking cap, water gap, water tap, weather map, wishing cap, yachting cap

4 syllables:
cervical cap, cumberland gap, garrison cap, liberty cap, overseas cap, percussion cap, toboggan cap

5 syllables:
distributor cap, radiator cap