𢧤
zhì

big

Phonosemantic compound. 大 represents the meaning and 戜 represents the sound.

Components

大
大 Meaning component
dà, dài big
戜
戜 Sound component
dié to scrape
Change in sound

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Component uses

Sound (1)

鐵

說文解字

《說文》：“，大也。从大，聲。讀若《詩》：‘大猷’。”

Sources

Character origin
Chinese Text Project
Readings & variants
Unicode
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)