• The LOT set (stop, sock, dodge, romp, possible, quality) (+ shot, hot, cot, bot…),
and
• The THOUGHT set (taught, sauce, hawk, jaw, broad) (+ caught, bought…)
(For those without the merger, there's also the CLOTH set of words (cough, broth, cross, long, Boston) which fall in either the LOT set or the THOUGHT set depending on the specific accent.)
Of interest here are:
• The LOT set (stop, sock, dodge, romp, possible, quality) (+ shot, hot, cot, bot…),
and
• The THOUGHT set (taught, sauce, hawk, jaw, broad) (+ caught, bought…)
(For those without the merger, there's also the CLOTH set of words (cough, broth, cross, long, Boston) which fall in either the LOT set or the THOUGHT set depending on the specific accent.)