76 entries under opening topic. ×

1
puncture(space, scratch, wound, hole)
1
shaft
1
slash(space, scratch, wound, hole)
1
vessel(noun, channel, cylinder, pipe)
0
adjutage
0
air pipe(expression, idiom)
0
ajutage
0
entrance hall(noun, expression, path, entry)
0
ostium
0
pit
0
smokestack
0
spout(noun, flow, channel, cylinder)
0
staircase(entry, doorway)
0
tap
0
threshold(entry, doorway)
-3
tubule
10 years ago|26k views|share |citing 
APASmart Define. (2016). passage thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/passage/thesaurus/synonyms
ChicagoSmart Define. 2016. "passage thesaurus" https://smartdefine.org/passage/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, passage thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/passage/thesaurus/synonyms>.
MLASmart Define. "passage thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/passage/thesaurus/synonyms>