know, wisdom
知 centers on having knowledge or understanding: knowing facts, possessing wisdom, and being aware.
to know; to be aware (of); to be conscious (of); to learn (of); to find out; to discover
to become known; to come to light; to be discovered
knowledge; information
acquaintance
acknowledgement; acknowledgment; recognition; cognition
notice; notification; report; posting
prefectural governor
notice; notification; announcement; disclosure; declaration
intellectual
knowing; being aware (of)
wisdom; wit; sagacity; sense; intelligence
intelligence; intellect; brains
knowledge; awareness
friend; acquaintance
intelligence
news; word; tidings; notice; notification; information
not yet known; unknown; strange
ignorance; innocence; stupidity
strange; unfamiliar; unknown
prefectural governor
common knowledge; being well-known; making (something) well-known
detection
foresight; foreknowledge; intimation; premonition; prediction
to notify; to advise; to inform
知 combines 矢 (arrow) and 口 (mouth), likely suggesting swift or precise speech as a metaphor for knowledge. The exact historical development is uncertain.
An arrow 矢 flying from a mouth 口 represents knowledge being shared quickly and accurately. When you know something, you can speak it as fast as an arrow.
For チ, imagine a wise person pointing at their cheek while sharing knowledge: cheek -> チ, and the wisdom comes from their mouth.