- Definitions|2
- Thesaurus|647
- Abbreviations|0
| headquarters | |
| headquarters echelon | |
| hurrying | |
| immovableness | |
| immutability | |
| impatience(noun, haste) | |
| installation | |
| knot | |
| libertinism | |
| license | |
| magnificent home(noun, expression, hold, keep, stronghold) | |
| main headquarters | |
| major headquarters | |
| manor(noun, hold, keep, top, stronghold) | |
| mansion(noun, hold, keep, stronghold, seat) | |
| maturity(noun, support, control, strength, balance) | |
| miles per hour(expression, idiom) | |
| military base | |
| military facility | |
| military installation |
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| APA | Smart Define. (2015). fastness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fastness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fastness thesaurus" https://smartdefine.org/fastness/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, fastness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fastness/thesaurus/synonyms>. |
| MLA | Smart Define. "fastness thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/fastness/thesaurus/synonyms> |