585 entries under noun topic. ×

4
rupture(break, cut, crack, split)
3
adit
3
appearance(look, way, examination, vision)
3
appointment(activity, place, work, position)
3
artery(progress, line, course, direction)
3
blank(break, cut, crack, rest)
3
clearance(place, space, capacity, extent)
3
dawning(cause, start, rise, top)
3
disruption(pause, breakdown)
3
doorway(issue, gap, entrance, entry)
3
escape(issue, protection, passage, vent)
3
furrow(scratch, wound, slash, laceration)
3
gateway(progress, line, bar, approach)
3
hatch(breach, hole, building, exit)
3
journey(progress, line, course, direction)
3
kickoff(act, start, top, informal)
3
lane(progress, line, course, direction)
3
launching(verb, technology, start, beginning)
3
look-in(show, chance, opportunity)
3
loophole
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APASmart Define. (2016). opening thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/opening/thesaurus/synonyms
ChicagoSmart Define. 2016. "opening thesaurus" https://smartdefine.org/opening/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, opening thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/opening/thesaurus/synonyms>.
MLASmart Define. "opening thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/opening/thesaurus/synonyms>