- Definitions|0
- Thesaurus|343
- Abbreviations|38
| measures(noun, durations) | |
| microseconds | |
| millennia | |
| milliseconds | |
| minorities | |
| minutes | |
| month of Sundays(noun, expression, idiom, forever, eternity) | |
| months | |
| olds | |
| other world(expression, age, future, infinity, perpetuity) | |
| pages | |
| periods of time(expression, idiom) | |
| perpetuities | |
| perpetuity(noun, age, future, infinity, forever) | |
| quite a while(expression, idiom) | |
| seconds | |
| semesters | |
| spells(noun, durations) | |
| stages of history(expression, idiom) | |
| time out of mind(noun, expression, idiom, memory, eternity) |
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| APA | Smart Define. (2015). ages thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ages/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ages thesaurus" https://smartdefine.org/ages/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, ages thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ages/thesaurus/synonyms>. |
| MLA | Smart Define. "ages thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/ages/thesaurus/synonyms> |