55 entries under opening topic. ×

12
entrance(noun, place, beginning, box)
12
estuary(noun, sound, box, arm)
12
mouth(noun, beginning, entrance, haven)
11
entry(noun, way, beginning, entrance)
10
access(noun, entry, doorway)
10
orifice(noun, beginning)
9
opening(noun, box, entrance, entry)
8
passage(noun, sound, arm, entry)
7
aperture
7
door(noun, beginning, box, entrance)
7
gateway(noun, beginning, entrance, entry)
7
way in(verb, expression, phrasal verb, entrance)
6
firth(noun, sound, box, arm)
6
ingress(noun, arm, entry, access)
6
outlet
5
gate(noun, beginning, box, entrance)
5
hole
4
harbor(noun, place, sound, box)
4
portico(noun, beginning, entry, doorway)
4
vent
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APASmart Define. (2015). inlet thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inlet/thesaurus/synonyms
ChicagoSmart Define. 2015. "inlet thesaurus" https://smartdefine.org/inlet/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, inlet thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inlet/thesaurus/synonyms>.
MLASmart Define. "inlet thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/inlet/thesaurus/synonyms>