yūn / yùn
adjective HSK 6 #2,461

Meanings

  1. 1 dizzy; giddy; lightheaded
  2. 2 to faint; to pass out; to lose consciousness
  3. 3 confused; bewildered

Examples

HSK 1
起来太快
Zhàn qǐlái tài kuài huì yūn.
You'll get dizzy if you stand up too fast.
HSK 2
Tā yūn guòqù le.
She fainted.
HSK 6
Tóuyūn shì xǔduō jíbìng de chángjiàn zhèngzhuàng.
Dizziness is a common symptom of many illnesses.

Tips

usage
yūn is the everyday spoken reading - the dizzy, lightheaded, about-to-faint sense. Core compounds: 头晕 (dizzy), 晕倒 (to faint), 晕厥 (to lose consciousness), 晕头转向 (utterly disoriented). The colloquial interjection 我晕 ('I'm speechless / I can't even') is internet-slang dizzy: figurative overwhelm.
memory
(sun) + (army) - an army marching under a blazing sun, soldiers getting dizzy. The original sense of the character was the hazy halo around the sun or moon (now read yùn); from 'optical halo' came 'the dizzy seeing-stars feeling' for yūn.

Components

radical
sun; day
Top sun radical (Kangxi #72) - the indexing radical. The original sense of was a 'halo around the sun or moon' - that hazy ring you see in misty conditions. From 'optical halo' came 'dizzy, faint, see stars,' the modern colloquial senses (晕车 carsick, 我晕 I'm dizzy/whoa). Same radical groups , , , .
phonetic
jūn
army; military
Bottom phonetic - supplies the sound, shifting to yūn/yùn through the velar-to-zero shift typical of medieval Mandarin. Same phonetic in (transport), (muddy), (wave), (shine). Recognising below or beside often signals a yūn/yùn/huī reading.

Stroke Order

yūn