由
yóu
by (marks who does something)
Every meaning
yóu
- by (marks who does something)
- from
- reason; pretext (以…为由)
- because of; due to
- to follow; to let (as in 由他去)
In the Library
它由陕西西安市临潼区的国家授时中心用原子钟产生，再从七十公里外的蒲城用无线电发出去。
Words with 由
Meanings are from Mandarin The Wild’s own dictionary. Levels follow the official HSK word list (the exam’s 2025 syllabus, levels 7–9 shown together).