ＯＢ
Freq.FrequencyTop 10,000
Meanings
1
alumnus; former member; old boy
Refers to a former member of a school, company, team, or organization. Often used in contexts like 大学のＯＢ (university alumni) or 会社のＯＢ (former company employee).
See also: オールドボーイ
He is an alumnus of this university.
Former employees of the company gathered and held a reunion.
2
Golf term; used when a ball goes outside the playable area. Also used metaphorically in other contexts to mean something is off-limits.
The ball went out of bounds.
That topic is out of bounds in this meeting.
Usage patterns
- 〈場所〉のＯＢan alumnus/former member of <place/organization>
He is an alumnus of the University of Tokyo.
- 〈物〉がＯＢになるfor a ball to go out of bounds (in golf)
His tee shot went out of bounds.
- 〈人〉が〈場所〉のＯＢになるto become an alumnus/former member of a place
He left the company and became an OB (former employee).
- ＯＢを打つto hit a shot out of bounds
He hit the ball out of bounds twice today.