識 means knowledge, to recognize and is a JLPT N3 kanji. It has 19 strokes and uses the words radical (言).
Stroke order · 19 strokes
On'yomi (音読み)
シキ
Kun'yomi (訓読み)
し(る)、しる(す)
Radical
言 · words
Strokes
19
How to remember 識
Listening to words (言) again and again and marking them down — that's how knowledge accumulates. 知識 (knowledge), 常識 (common sense) — the second one isn't found in books.