16
day
7
era
7
time period(noun, expression, idiom, time, limit)
5
timeframe
4
epoch
4
term(measure, level, range, degree, date)
2
bimonthly
2
course
2
period(noun, date)
2
second
2
time(measure, level, range, degree, magnitude)
1
admeasurement(measure, level, range, degree, magnitude)
1
age
1
ambit(measure, level, range, degree, magnitude)
1
amount(measure, level, range, degree, magnitude)
1
amplitude(measure, level, range, degree, magnitude)
1
annual
1
area(measure, level, range, degree, magnitude)
1
biannual
1
biennial
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APASmart Define. (2015). period of time thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/period_of_time/thesaurus/synonyms
ChicagoSmart Define. 2015. "period of time thesaurus" https://smartdefine.org/period_of_time/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, period of time thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/period_of_time/thesaurus/synonyms>.
MLASmart Define. "period of time thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/period_of_time/thesaurus/synonyms>