一下
yíxià
all of a sudden; in a moment
Every meaning
yīxià
- in a moment; all at once
- (used after a verb) for a bit; briefly (as in 看一下)
Its characters
Words with 一
Words with 下
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).