Godan verb with 'su' ending, Transitive verbto ascertain; to confirm; to verify; to make sure of

Noun, Suru verb, Transitive verbsearching examination; establishing the facts through thorough examination

Noun, Suru verb, Transitive verbinquiry; enquiry

Expressions (phrases, clauses, etc.), Godan verb with 'su' endingto go to the bottom of an affair; to inquire into the origin

Godan verb with 'su' ending, Transitive verbto inquire (about); to enquire; to ask · to interrogate; to question intensely; to grill (someone about something); to ask (someone) to explain