1. triple check - Noun
2. triple check - Verb
triple check (plural triple checks)
An extra check or verification made a third time, usually with additional caution or attention.
Did you make a double check and a triple check of the entire minefield before proceeding?
triple check (third-person singular simple present triple checks, present participle triple checking, simple past and past participle triple checked)
To check again; to check with extra caution or attention; to verify or make sure.
Did you double check and triple check of the entire minefield before proceeding?