7
well(noun, deep, hole, hollow, gap)
6
bayou(noun, sound, arm, pool, sea)
6
break(noun, split, division, disagreement, space)
6
estuary(noun, gulf lake)
6
harbor(noun, place, sound, arm, sea)
6
rent(noun, deep, hole, hollow, gap)
6
separation(noun, break, split, division, deep)
6
space(noun, gap)
6
void(noun, deep, opening, space, hole)
5
cave(noun, deep, dip, hole, hollow)
5
crevice(noun, ditch, gap, gorge, valley)
5
disconnection(noun, separation)
5
expanse(noun, deep, hole, hollow, gap)
5
fiord(noun, gulf lake)
5
firth(noun, sound, arm, sea, mouth)
5
gorge(noun, interval)
5
gulch(noun, deep, hole, hollow, interval)
5
notch(noun, interval, gap)
5
shaft(noun, deep, well, hole, hollow)
5
strait(noun, interval, gulf lake)
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APASmart Define. (2015). gulf thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/gulf/thesaurus/synonyms
ChicagoSmart Define. 2015. "gulf thesaurus" https://smartdefine.org/gulf/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, gulf thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/gulf/thesaurus/synonyms>.
MLASmart Define. "gulf thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/gulf/thesaurus/synonyms>