14 entries under time topic. ×

6
time machine(expression, concept, travel, theory)
5
arrive in the future(expression, travel, arrival)
5
forward time travel(expression, concept, travel, theory)
4
arrive in the past(expression, travel, arrival)
4
backward time travel(expression, concept, travel, theory)
4
black holes(expression, move, space)
4
closed time-like curve(expression, loop, theory)
4
time machine research(expression, machine, theory)
4
time traveler(expression, person, traveler)
3
cosmic strings(expression, travel, space)
3
infinite cylinder(expression, travel, mechanism)
3
points in time(expression, period, interval, duration)
2
one-way time travel(expression, concept, travel, theory)
2
time travel research(expression, theory, research)
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APASmart Define. (-0001). time travel thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/time_travel/thesaurus/narrower
ChicagoSmart Define. -0001. "time travel thesaurus" https://smartdefine.org/time_travel/thesaurus/narrower (accessed September 28, 2026).
HarvardSmart Define -0001, time travel thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/time_travel/thesaurus/narrower>.
MLASmart Define. "time travel thesaurus" 30 November -0001. Web. 28 September 2026. <https://smartdefine.org/time_travel/thesaurus/narrower>