This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 囜 is uncertain. It visually combines the enclosure 囗 with the component 厶, but the original meaning and formation are unclear.
The enclosure 囗 wraps around 厶, but the meaning is unclear. Think of it as a sealed box with a private mark inside—its meaning remains hidden.
For ジン, imagine a genie (ジン) trapped inside the box 囗, with the 厶 shape as its magical mark.