Radical 37

Radical 37 or radical big meaning "big", "great", or "very" is one of the 31 Kangxi radicals composed of three strokes.
In the Kangxi Dictionary, there are 132 characters to be found under this radical.
大 is also the 33rd indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.

Sinogram

The radical is also used as an independent Chinese character. It is one of the Kyōiku kanji or Kanji taught in elementary school in Japan. It is a first grade kanji.