A- or a- may refer to:
- A-hyphen
- A- (plane), a U.S. military aircraft prefix
- Privative a, a prefix expressing negation
- Copulative a, a prefix expressing unification
- A-minus
- A−, a blood type in the ABO blood group system
- A− (grade), an educational grade in the letter-grading system, above B+ but below A
See also
Topics referred to by the same term
This disambiguation page lists articles associated with the title A-.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: