acknowledge, witness, discern, recognize, appreciate, believe
認 centers on mental acceptance of something as true or valid: acknowledging a fact, recognizing a person or pattern, discerning truth, appreciating value, or believing a statement.
認 combines 言 (speech, words) with 忍, which likely contributes the sound ニン and the idea of enduring or bearing something. The compound suggests bearing something in mind through words, leading to acknowledgment or recognition.
Words (言) that endure (忍) in your mind are the ones you acknowledge and recognize. Picture a statement that stays with you until you accept it as true.
For ニン, imagine a ninja (忍者, にんじゃ) silently acknowledging your presence with a nod: nin -> ニン, and the ninja recognizes you.
confirmation; verification; validation; review; check; affirmation; identification
to recognize; to recognise; to observe; to notice
recognition; awareness; perception; understanding; knowledge; cognition; cognizance; cognisance
authorization; authorisation; acknowledgment; acknowledgement; certification; recognition
recognition; acknowledgement; acknowledgment; approval; consent; agreement
acknowledgement; acknowledgment; recognition; cognition
certification; attestation; authentication; confirmation
official recognition; official approval; certification; authorization; authorisation
approval; license; licence; permission
approval; acceptance; toleration
visual confirmation; sighting
misrecognition; mistaking (x for y)
denial; negation; repudiation; disapproval
tacit approval; tacit permission; connivance; acquiescence; toleration; overlooking
admission; (self-)acknowledgment; (self-)acknowledgement
ratification; confirmation
approval and authorization; permits and licences
approval; approbation; endorsement
approval or disapproval; admission or denial
acknowledgement; acknowledgment