Radical 128

Radical 128 or radical ear meaning "ear" in English is one of the 29 Kangxi radicals composed of 6 strokes.
In the Kangxi Dictionary, there are 172 characters to be found under this radical.
耳 is also the 124th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.

Sinogram

Independently it is a Chinese character. It is one of the Kyōiku kanji or Kanji taught in elementary school in Japan. It is a first grade kanji.