Synonyms|380Antonyms|79|Broader|7Narrower|21Related|160

40 entries under cover topic. ×

16
citadel(noun, structure, defense, stronghold, reinforcement)
16
stronghold(noun, hold, keep, position)
10
fortress(noun, hold, keep, position)
7
fort(noun, hold, keep, position)
7
bastion(noun, position, top, guard)
6
security(noun, support, control, change)
5
garrison(noun, keep, position, guard)
4
defense(noun, guard, resistance, protection)
4
redoubt(noun, position, top, guard)
3
fortification(noun, hold, keep, position)
3
ward(noun, position, guard, shield)
2
protection(noun, position, guard, shield)
2
shelter(noun, position, guard, shield)
1
barricade(noun, keep, position, guard)
1
bulwark(noun, position, guard, shield)
1
parapet(noun, position, guard, shield)
1
resistance(noun, position, guard, shield)
1
stockade(noun, keep, position, guard)
1
wall(noun, keep, position, guard)
0
aegis(noun, position, guard, shield)
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APASmart Define. (2015). fastness thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fastness/thesaurus/synonyms
ChicagoSmart Define. 2015. "fastness thesaurus" https://smartdefine.org/fastness/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, fastness thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fastness/thesaurus/synonyms>.
MLASmart Define. "fastness thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/fastness/thesaurus/synonyms>