1. 만 (萬) -- ten thousand.

This is a Sino-Korean word with no equivalent pure-Korean word. It is preceded by 구천구백구십구 and followed by 만일. When counting by thousands it is preceded by 구천 and followed by 만천. In Korean, 만 is used instead of 천 as a major counting unit.

• 일만 ten thousand
• 이만 twenty thousand
• 삼만 thirty thousand
• 사만 forty thousand
• 오만 fifty thousand
• 육만 sixty thousand
• 칠만 seventy thousand
• 팔만 eighty thousand
• 구만 ninety thousand

Afterwards, the use of 만 can become awkward for English speakers.

• 십만 one hundred thousand (ten ten thousands)
• 백만 one million (one hundred ten thousands)
• 천만 ten million (one thousand ten thousands)

The next highest counting unit is 억 (ten thousand ten thousands).

Usage:

• 수만 tens of thousands
• 수십만 hundreds of thousands
• 5만분지 1의 지도 a map on the scale of one-fifty-thousandth
• 만에 하나 one in ten thousand;be very rare

See also: Counting in Korean, 억, 천

2. 만 -- only, merely.

3. 만 (灣) -- a gulf, a bay.

Usage:

• 멕시코만 the Gulf of Mexico
• 인천만 Incheon Bay
• 만을 이루다 to form a gulf (bay)

4. 만 (卍) -- the Buddhist cross.

See also: 불교

5. 만 (滿) -- just, fully. She's fully 20 years old.