乎
hū HSK4

interrogative or exclamatory final particle

乎 hū
at expression
classical prepositional particle similar to 于 yú, used to indicate location, origin, or comparison (in, at, from, than)

出乎意料

chū hū yì​liào

Unexpected.

question particle modal particle
classical sentence-final particle used to express a question, doubt, or astonishment

学而时习之，不亦说乎？

xué ér shí xí zhī, bù yì yuè hū?

Is it not a pleasure to learn and practice what you have learned from time to time?

Frequency
Character
Written text
458th most common 465.8 per million
Movie subtitles
564th most common 249.4 per million appears in 72% of films
Word
Movie subtitles
4.68 per million appears in 2% of films
Written text
19.7 per million

Details
HSK 2.0
Level 3
HSK 3.0
Level 4
Strokes
5
Unicode
U+4E4E

Sources
Definitions
CC-CEDICT
Frequency data
MTSU Chinese text computingSUBTLEX-CHBCC Corpus (BLCU)