WordNet: formalise, formalize, validate

declare or make legally valid

• hypernym authorise, authorize, clear, pass

• hyponym ratify, sign

• hyponym co-sign, cosign

• hyponym probate

formalise

• (englanti) formalisation (derivationally related)
• (suomi) virallistaa (synonyymi)

formalize

• (englanti) formalization (derivationally related)
• (suomi) virallistaa (synonyymi)

validate

• (englanti) invalidate (antonym)
• (suomi) laillistaa (synonyymi)