2
grunt(noun, verb, cheer, call, cry)
2
guarantee(noun, agreement, assurance, promise, pledge)
2
honk(verb, play)
2
horn
2
howl(noun, verb, cheer, call, cry)
2
hubble-bubble
2
hum(verb, wait, shout, whistle, chant)
2
hymn(verb, wait, shout, whistle, chant)
2
lock(noun, agreement, bar, contract, assurance)
2
look(verb, see, regard, follow, observe)
2
nozzle
2
offer
2
outlet(noun, opening, fan, shaft, channel)
2
passageway(noun, opening)
2
peace pipe(expression, idiom, peace)
2
psalm
2
quack(noun, verb, cheer, call, cry)
2
serenade(verb, wait, shout, whistle, chant)
2
shut up
2
skirl
10 years ago|14k views|share |citing 
APASmart Define. (2015). pipe thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/pipe/thesaurus/synonyms
ChicagoSmart Define. 2015. "pipe thesaurus" https://smartdefine.org/pipe/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, pipe thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/pipe/thesaurus/synonyms>.
MLASmart Define. "pipe thesaurus" 23 December 2015. Web. 20 September 2026. <https://smartdefine.org/pipe/thesaurus/synonyms>