2
trench(well, hole, hollow)
2
valley(dish, sink, dip, pot, bowl)
2
wadi
2
water(noun, wet, surface)
1
gut
1
yawn
1
abysses
1
alienation(noun, break, split, division, gap)
1
anchorage(noun, sound, arm, mouth, harbor)
1
back stream
1
backflow
1
backwash
1
backwater
1
blank(noun, space, void, gap, rift)
1
boca
1
bottomless pit(noun, expression, situation, hell)
1
bowl(dish, sink, dip, pot, bottom)
1
box canyon
1
broaching
1
canyon
11 years ago|8.3k views|share |citing 
APASmart Define. (2015). gulf thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/gulf/thesaurus/synonyms
ChicagoSmart Define. 2015. "gulf thesaurus" https://smartdefine.org/gulf/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, gulf thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/gulf/thesaurus/synonyms>.
MLASmart Define. "gulf thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/gulf/thesaurus/synonyms>