4
calm down
4
quiet
3
calm
3
quieten
3
tranquilize
3
tranquillize
2
assure
2
lull
2
tranquillise
1
certify
1
hearten
1
speech(noun, verb)
1
still
11 years ago|139 views|share |citing 
APASmart Define. (2015). reassure thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/reassure/thesaurus/broader
ChicagoSmart Define. 2015. "reassure thesaurus" https://smartdefine.org/reassure/thesaurus/broader (accessed September 24, 2026).
HarvardSmart Define 2015, reassure thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/reassure/thesaurus/broader>.
MLASmart Define. "reassure thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/reassure/thesaurus/broader>