아홉 (ahop) means “nine” | MotiTan Korean Dictionary

More examples

친구가 아홉 명 모였어.chin gu ga a hop myeong mo yeo sseo

Nine friends gathered.

The number that comes after eight and before ten.

구ku: Official writing and numbered information commonly use the Chinese-based form of nine.

여덟 다음이자 열보다 하나 적은 수를 세는 말yeo deol ta eu mi ja yeol bo da ha na cheo geun su reul se neun mal

아홉 (ahop, "native Korean word for nine") is an old native Korean numeral, separate from the Sino-Korean numeral gu.

For daily time and age, this native Korean number is common, but phone numbers often use another Korean number system.