Before any transfusion, the hospital technician confirmed the patient's ABO to ensure compatibility.

The programmer used the identifier Abo as an example of an alternative letter-case form.

During the heated exchange, someone called him an abo, and others immediately pointed out that it was an offensive racial slur.

Journalists criticized the council after it used the word Abos in its official statement.

During the workshop, the teacher explained why the slur abos is harmful and should never be used.

Her ABO group was recorded in the medical file before the surgery.

The conductor shouted, 'all aboard,' as the train prepared to leave the station.

At dawn the paper boats drifted abob along the canal, each carrying a tiny candle.

After the storm, the broken canoe floated silently, its hull still abob among the reeds.

She wondered aboat the cost of the repairs.