輪 (Kanji for ring/tire)

Onyomi

RIN	The wedding RING!

My car needs tires to go to the bookstore.

わ	can mean ring, like rings of saturn, or loop, like cable which is stored in a loop, or circle, like folk-dances where everyone forms a circle. But 輪 is never an actual ring like you wear on your finger. NUBI ★☆☆☆☆

指輪(ゆびわ)

ring ★★★☆☆ KUNKUN
指 (finger / point at) + 輪 (ring/tire) = 指輪 (ring)

THIS is the ring you wear!

車輪(しゃりん)

tire ★★★☆☆
車 (car) + 輪 (ring/tire) = 車輪 (tire)

輪ゴム(わごむ)

rubber band ★★☆☆☆ KUNKUN
輪 (ring/tire) + ム () = 輪ゴム (rubber band)

	Meaning	Hint	Radical
輸	transport	BUTCHER
輪	ring/tire	LIBRARY

You transport meat to the BUTCHER, but I check out a ring from the LIBRARY.