- ONEB
- First-floor apartment
- First-floor apartment, maybe
- Ground floor apartment number, perhaps
- Single, on a baseball scorecard
- Valedictorian's disappointment?
- Valedictorian's lone blemish?
- A student's GPA blemish
- Ruiner of a perfect report card
- Seat usually in first class
- Front row seat
- Mark on an otherwise perfect record?
- Spoiler of a perfect GPA
- Premium plane seat, usually
- Spoiler of a perfect semester
- Seat for a priority boarder
- 4.0 GPA spoiler
- Perfect report card wrecker
- What beer has
- Common first floor apt. no.
- Ground-floor apartment
- Apartment next to the super's, maybe
- Certain ground-floor apartment
- Apartment next to a super, maybe
- Seat near the front of a plane
- Spoiler of a perfect report card
- First-floor apartment, perhaps
- Certain first-floor apartment
- Apartment next to the super's, perhaps
- First floor apt., perhaps
- Ground-floor apartment, perhaps
- Perfect report card spoiler
