"validating" in the verb sense
1. validate, formalize, formalise
declare or make legally valid
2. validate
prove valid show or confirm the validity of something
3. validate, corroborate
give evidence for
4. validate
make valid or confirm the validity of
"validate a ticket"
"validating" in the adjective sense
1. collateral, confirmative, confirming, confirmatory, corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying
serving to support or corroborate
"collateral evidence"
Source: WordNet® (An amazing lexical database of English)
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