This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 倁 is uncertain. It visually combines 亻 (person) and 知 (know), but its original meaning and origin are unclear.
A person 亻 beside 知 (know) could suggest someone who knows, but the actual meaning is uncertain.
For チ, imagine a person who knows everything saying 'cheese!' for a photo: cheese -> チ, and the person 亻 knows 知 the perfect moment.