Radicals › #8 亠
亠
亠 — the “lid” radical
a dot over a line, like a lid on top 9 of the JLPT kanji on this site are built with it — recognizing the piece makes them far easier to remember.
Kanji using the 亠 radical (9)
京capital, 10**16交mingle, mixing亡deceased, the late亭pavilion, restaurant亮clear, help享enjoy, receive亨pass through, go smoothly亥sign of the hog, 9-11PM亦also, again
Radicals (部首, bushu) are the shared building blocks of kanji, used to sort them in every dictionary. Learn the common ones and new kanji stop looking random.