1
abundant year
1
academic term(expression, idiom)
1
annum
1
bissextile year
1
calendar month
1
calendar year
1
century
1
common year
1
decade
1
decennary
1
decennium
1
defective year
1
delta(noun, three)
1
deltoid(noun, three)
1
deuce-ace
1
fiscal year
1
fortnight
1
hour
1
leap year
1
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APASmart Define. (2015). trimester thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/trimester/thesaurus/synonyms
ChicagoSmart Define. 2015. "trimester thesaurus" https://smartdefine.org/trimester/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, trimester thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/trimester/thesaurus/synonyms>.
MLASmart Define. "trimester thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/trimester/thesaurus/synonyms>