24 entries under round topic. ×

54
period(noun, time, set, present, turn)
41
age(noun, time, set, present, turn)
10
aeon(noun, time, set, period)
5
eon(noun, set, period, history)
3
course(noun, time, set, period)
3
phase(noun, set, stretch, period)
1
run(set, sequence, series, phase)
1
sequence(set, series, phase)
1
succession(set, sequence, series, phase)
1
alternation(set, sequence, series, phase)
1
ring(set, sequence, series, phase)
1
sequel(set, sequence, series, phase)
1
wheel(set, sequence, series, phase)
0
chain(set, sequence, series, phase)
0
circle(set, sequence, series, phase)
0
circuit(set, sequence, series, phase)
0
isochronism(set, sequence, series, phase)
0
loop(set, sequence, series, phase)
0
orbit(noun, set, course, sequence)
0
periodicity(set, sequence, series, phase)
<12>
10 years ago|16k views|share |citing 
APASmart Define. (2016). era thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/era/thesaurus/synonyms
ChicagoSmart Define. 2016. "era thesaurus" https://smartdefine.org/era/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, era thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/era/thesaurus/synonyms>.
MLASmart Define. "era thesaurus" 2 March 2016. Web. 22 September 2026. <https://smartdefine.org/era/thesaurus/synonyms>