験 means test; experience and is a JLPT N4 kanji. It has 18 strokes and uses the horse radical (馬).
Stroke order · 18 strokes
On'yomi (音読み)
ケン、ゲン
Kun'yomi (訓読み)
あかし、しるし、ため(す)
Radical
馬 · horse
Strokes
18
How to remember 験
馬 (horse): you have to test-ride a horse before buying it — to verify. 試験 (shiken) = exam, 経験 (keiken) = experience. This kanji also appears in the full name of the JLPT.