超 means “exceed, super-, ultra-”

ちょう · chou

Also: transcend

Kun'yomi (Japanese reading)
こえる, こす
On'yomi (Chinese reading)
チョウ

JLPT N2 · Taught in secondary school · 12 strokes

The story

Running (走) the moment you are summoned (召): picture a sprinter clearing every hurdle in the way. 超える is to go past a limit, 超過 is an excess, and in casual speech 超 means "super," as in 超かわいい, super cute.

Used in 超える (koeru, to exceed), 超過 (chouka, excess/overage), and 超音波 (chouonpa, ultrasound)

More from Build & Renew

Learn 超 and more kanji free on Fuji Learning · All kanji

Readings from KANJIDIC2, © EDRDG, CC BY-SA.