KanjiJLPT N2
Ring

ring, circle, loop

Mnemonic

The king commands a cyclops to forge the ultimate ring. Squinting through its single enormous eye, the cyclops hammers white-hot metal into a flawless circle. The king slides the ring onto his finger, vowing his rule will loop endlessly—cycle after cycle, never broken.
Additional thoughts
Picture the cyclops's lone eye as itself ring-shaped, the pupil a perfect circle mirroring the ring it forges. The king's decree ties the ring to cycles and eternity.
Quick recall
A king has a cyclops forge a perfect ring, its lone eye mirroring the endless circle.

Details

The keyword for 環 is ring. This kanji refers to a circular band or loop, such as a ring-shaped object or an annular form. It extends to mean a cycle, circuit, or link in a chain, emphasizing the idea of something that comes full circle. It is also used in broader contexts to denote surroundings or environment, as in the concept of things encircling or encompassing something.
On'yomi
かん
Kun'yomi