缶 - CAN (of food)

Readings & Meanings:

カン

a can (drink or food can)

Common Usage:

缶詰

空き缶

缶切り

Examples:

サバの缶詰は私の大好物だ。

空き缶はリサイクル箱へ入れてください。

缶切りで手を切ってしまった。

Translations:

Canned mackerel is my favorite.

Please put the empty containers in the recycling bin.

I cut my hand with the can opener.

Radical:

缶 is its own radical! (But all the kanji that use it as a radical are too rare to be on the 1,945 list of common kanji.) Its radical name is Hotogi.

It's a picture of a clay pot that bulges in the middle.

References:

http://www.kanjinetworks.com/indices/radindex.html
http://www.thejapanesepage.com/node/kanji/7.htm