about
: 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
: 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
1
able seaman; able-bodied seaman
2
abort; abortion
3
airborne
4
airman basic
5
Alberta
6
[New Latin artium baccalaureus]
bachelor of arts
: from : away : off
abaxial
Examples of ab in a Sentence
Recent Examples on the Web
Kimberlee Speakman, People.com, 17 May 2025
With your hands on the bar, pull to your upper abs, then pause for a few seconds.
—Laura Schober, Health, 13 May 2025
The below circuit smokes your abs in three different ways.
—Jenny McCoy, SELF, 7 May 2025
While Miley Cyrus is showing off her abs in a two-piece black outfit, her exes Patrick Schwarzenegger and Nick Jonas are out there.
—Fran Hoepfner, Vulture, 6 May 2025
See All Example Sentences for ab
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Noun
Hough celebrated a new decade of his life in his own way on Instagram, sharing a mirror selfie showing off his dancer’s abs and nodding to a years-old joke between himself and Erbert.
—Kimberlee Speakman, People.com, 17 May 2025
With your hands on the bar, pull to your upper abs, then pause for a few seconds.
—Laura Schober, Health, 13 May 2025
The below circuit smokes your abs in three different ways.
—Jenny McCoy, SELF, 7 May 2025
While Miley Cyrus is showing off her abs in a two-piece black outfit, her exes Patrick Schwarzenegger and Nick Jonas are out there.
—Fran Hoepfner, Vulture, 6 May 2025
See All Example Sentences for ab
Cite this Entry
“Ab.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ab. Accessed 22 May. 2025.
Copy CitationMedical Definition
ab
2 of 4 abbreviation1
or AB
abort; abortion
2
about
AB
3 of 4 noun
: 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
4 of 4 abbreviation1
aid to blind
2
[Latin artium baccalaureus]
bachelor of arts
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