1
reach
1
recess(noun, low, cup, indentation, cavity)
1
refluence
1
reflux
1
regurgitation
1
reservoir
1
rime
1
sag(dish, sink, dip, pot, bowl)
1
schism(noun, break, split, division, disagreement)
1
scissure
1
seam
1
sinkage(noun, dish, sink, dip, pot)
1
sinkhole(noun, dish, sink, dip, pot)
1
slot
1
slouch
1
stoma
1
straits
1
swirl
1
tabula rasa(expression, opening, void, hollow)
1
tank
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APASmart Define. (2015). gulf thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/gulf/thesaurus/synonyms
ChicagoSmart Define. 2015. "gulf thesaurus" https://smartdefine.org/gulf/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, gulf thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/gulf/thesaurus/synonyms>.
MLASmart Define. "gulf thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/gulf/thesaurus/synonyms>