Synonyms of say-so in English:

say-so


See definition of say-so

noun

1‘Kathleen ran things around here and nothing could be done without her say-so’

SYNONYMS
authorization, approval, seal of approval, agreement, consent, assent, permission, endorsement, sanction, ratification, approbation, acquiescence, confirmation, blessing, leave
informal OK, the go-ahead, the green light, the thumbs up
ANTONYMS

refusal, denial