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Definition of ab
(Entry 1 of 6)
: an abdominal muscle
—usually used in plural
ab
abbreviation (1)Definition of ab (Entry 2 of 6)
about
Ab
noun (2)Definition of Ab (Entry 3 of 6)
: the 11th month of the civil year or the 5th month of the ecclesiastical year in the Jewish calendar — see Months of the Principal Calendars Table
AB
noun (3)Definition of AB (Entry 4 of 6)
: the one of the four ABO blood groups characterized by the presence of antigens designated by the letters A and B and by the absence of antibodies against these antigens
AB
abbreviation (2)Definition of AB (Entry 5 of 6)
1 able seaman; able-bodied seaman
2 airborne
3 airman basic
4 Alberta
5 abort; abortion
6
[New Latin artium baccalaureus] bachelor of arts
ab-
prefixDefinition of ab- (Entry 6 of 6)
: from : away : off
abaxial
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Time Traveler for ab
The first known use of ab was circa 1771
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