1
outgate
1
outgo
1
peephole
1
pigeonhole
1
placket
1
placket hole
1
pore
1
port
1
porthole
1
punch-hole
1
sally port
1
sluice
1
spilehole
1
spout
1
tap
1
throat
1
touchhole
1
transom
1
ventage
1
ventilating shaft
11 years ago|2.3k views|share |citing 
APASmart Define. (2015). blowhole thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/blowhole/thesaurus/synonyms
ChicagoSmart Define. 2015. "blowhole thesaurus" https://smartdefine.org/blowhole/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, blowhole thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/blowhole/thesaurus/synonyms>.
MLASmart Define. "blowhole thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/blowhole/thesaurus/synonyms>