RichThesaurus
make valid
make valid
synonyms
sanction
validate
authorize
certify
accept
ratify
affirm
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confirm
sign
license
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thumbs up
permit
put one's name to
consent
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support
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legitimize
uphold
assent to
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go along with
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charter
dig
mandate
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pronounce
sign off on
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stump for
second
okay
lap up
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more synonyms
make valid
antonyms
reject
invalidate
refuse
oppose
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disapprove