solemn word
NOUN
promise
Synonyms
WEAK
affiance
affirmation
agreement
asseveration
assurance
avowal
betrothal
bond
commitment
compact
consent
contract
covenant
earnest
engagement
espousal
guarantee
guaranty
insurance
marriage
oath
obligation
pact
parole
pawn
pledge
plight
profession
promissory note
sacred word
security
stipulation
swear
swearing
token
troth
undertaking
vow
warrant
warranty
word
word of honor
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.