usual spellings of “ ɔː ”

or , al , our, ore, au , aw

corn ,force, nor, short, call, fall, walk, chalk four, yours, source, more, shore, bored fault, pause, sauce war, aw, oor, oa(r) ought, war, warmth, warn, law, draw, raw door, floor, broad, board, thought, bought, fought

Triphthong

Definition of triphthong

A combination of three vowel sounds in a single syllable, forming a simple or compound sound; also, a union of three vowel characters, representing together a single sound; a trigraph; as, eye, -ieu in adieu, -eau in beau, are examples of triphthongs