HSK6
zhù
pillar
Phonosemantic compound. 木 represents the meaning and 主 represents the sound.
木 Meaning component
mù
tree
主 Sound component
zhǔ
master
Seal script
Clerical script
Regular script
柱
pillar, post; support; lean on; pillar; CL:根[gēn]
支柱
mainstay
柱子
脊柱
spinal column
门柱
doorpost
Academia Sinica
Make Me a Hanzi
Unicode
Baxter-Sagart
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing