6
reassure(verb, encourage, excite, prepare, boost)
5
signal(noun, device, alarm, marker, floating marker)
5
bolster(verb, support, help, set, keep)
5
buoy up(verb, expression, phrasal verb, encourage, boost)
5
enliven(verb, encourage, excite, prepare, boost)
5
fortify(verb, support, encourage, excite, prepare)
5
gladden(verb, encourage, stimulate, excite, prepare)
5
hold up(verb, expression, phrasal verb, support, help)
4
bell(noun, alarm)
4
brighten(verb, encourage, stimulate, excite, prepare)
4
buttress(verb, support, help, keep, maintain)
4
exalt(verb, phrasal verb, raise, excite, happy)
4
life preserver(noun, expression, idiom, device, lifeline)
4
lighten(verb, reduce, ease, lessen, lift)
4
prop(verb, support, help, keep, maintain)
4
semaphore(noun, alarm)
4
siren(noun, alarm)
3
abet(verb, support, keep, maintain, sustain)
3
alarm(noun, alarm)
3
brace(verb, support, help, keep, maintain)
11 years ago|7.7k views|share |citing 
APASmart Define. (2015). buoy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/buoy/thesaurus/synonyms
ChicagoSmart Define. 2015. "buoy thesaurus" https://smartdefine.org/buoy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, buoy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/buoy/thesaurus/synonyms>.
MLASmart Define. "buoy thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/buoy/thesaurus/synonyms>