Dome, home, mome, foam, roam, loam.

OMP.

Pomp, swamp, romp.

OMPT.

Prompt, preterite and participle of romp.

ON.

(As in "don"), rhymes on, con, upon, anon, bonne;|| (as in "won"), rhymes ton, fun, done, etc. [By some, "gone," "hone," and other like words are so pronounced as to rhyme with "on.">[

ONCE.

(As in "sconce"), rhymes response, etc. (As in "once"), rhymes dunce, etc.

ONCH.