Gab rhymes with:
ab, bab, babb, cab, colab, crab, crabb, crabbe, dab, drab, fab, flab, glab, grab, grabbe, jab, knab, knabb, krabbe, lab, labbe, mab, macnab, mcnab, mcnabb, nab, nabb, prab, prefab, rab, rabb, sabb, scab, schab, slab, stab, tab, tabb
Gab sounds like:
gaba, gabay, gabby, gabe, gabie, gaby, gaf, gaff, gaffe, gaffey, gap, gape, gapp, gappa, gasify, gasp, gaspe, gaub, gave, gebbia, gebbie, gebo, geib, geoff, geva, giacobbe, giap, gib, gibb, gibby, gibe, gibeau, giff, giffy, gipe, gipp, giuseppe, give, giveaway, gob, gobi, gobie, gobioff, goff, goof, goofy, goop, goosby, gopi, gossip, gossipy, gouvea, gouveia, gov, gove, govea, guava, guba, guff, guffaw, guffey, guffy, guppy, gyp