76 entries under expression topic. ×
| grant-in-aid school(idiom, school) | |
| high school(idiom, school) | |
| higher grade school(idiom, school) | |
| infant school(idiom, school) | |
| middle class school(idiom, school) | |
| military man | |
| military personnel | |
| military school(idiom, school) | |
| missionary school(idiom, school) | |
| naval academy(idiom, school) | |
| naval school(idiom, school) | |
| no strings attached(idiom, open, free, elective) | |
| not accidental | |
| not asked(adjective, willing, arrogant, unsolicited) | |
| not obligatory | |
| not required(open, free, elective) | |
| of causes(idiom, assent) | |
| off your own bat(idiom, willing, spontaneous, unforced) | |
| on the house(idiom, free, gratis) | |
| popular belief(idiom, assent) |
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Voluntary on
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| APA | Smart Define. (2015). voluntary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/voluntary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "voluntary thesaurus" https://smartdefine.org/voluntary/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, voluntary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/voluntary/thesaurus/synonyms>. |
| MLA | Smart Define. "voluntary thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/voluntary/thesaurus/synonyms> |