- Definitions|0
- Thesaurus|136
- Abbreviations|1
| nothingness(noun, opening, void, hollow, emptiness) | |
| air | |
| air space(expression, idiom) | |
| blank(emptiness, vacuum) | |
| emptiness(noun, opening, void, hollow, vacuum) | |
| expanse(opening, authorization, permission, go-ahead) | |
| hole(noun, opening, space, void, hollow) | |
| outer space(noun, universe) | |
| space(gap, emptiness, vacuum) | |
| tabula rasa(noun, expression, opening, void, hollow) | |
| vacuum(noun, opening, void, hollow, emptiness) | |
| void(noun, opening, space, hollow, gap) | |
| abyss(noun, opening, void, hollow, emptiness) | |
| acreage | |
| aerospace | |
| aerosphere | |
| air hole | |
| air pocket | |
| area | |
| breadth |
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| APA | Smart Define. (2015). empty space thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/empty_space/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "empty space thesaurus" https://smartdefine.org/empty_space/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, empty space thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/empty_space/thesaurus/synonyms>. |
| MLA | Smart Define. "empty space thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/empty_space/thesaurus/synonyms> |