entire
圝 centers on the idea of wholeness or completeness: something entire, round, or fully enclosed. Its meaning of 'entire' suggests a unified, unbroken whole.
圝 is a rare character combining the enclosure 囗 with 䜌, which likely contributes a phonetic element. The exact historical development is uncertain, but the enclosure suggests something contained or complete.
The outer 囗 is an enclosure, and the inner 䜌 looks like a tangled but complete bundle. Picture a fence surrounding an entire field, leaving nothing outside.
For ラン, imagine a large ranch enclosed by a fence, representing the entire property: ranch -> ラン, and the whole ranch is one complete unit.