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
Sherri Gordon, Health, 28 July 2025
Over on her Instagram Stories, the former tennis player shared a photo of herself wearing a cropped matching short set with her abs on full display.
—Angel Saunders, People.com, 18 July 2025
Boat pose in yoga is a challenging stability exercise that works the entire core from the abs to the hip flexors to the muscles that run up your spine.
—Cory Martin, Verywell Health, 17 July 2025
In the clip, Frankel rocked a variety of skimpy-meets-stunning styles, accessorized by hair extensions, a spray tan and killer abs.
—Madeleine Marr, Miami Herald, 3 June 2025
See All Example Sentences for ab
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Noun
Bend your legs at the knee and brace your abs to slowly raise your legs.
—Sherri Gordon, Health, 28 July 2025
Over on her Instagram Stories, the former tennis player shared a photo of herself wearing a cropped matching short set with her abs on full display.
—Angel Saunders, People.com, 18 July 2025
Boat pose in yoga is a challenging stability exercise that works the entire core from the abs to the hip flexors to the muscles that run up your spine.
—Cory Martin, Verywell Health, 17 July 2025
In the clip, Frankel rocked a variety of skimpy-meets-stunning styles, accessorized by hair extensions, a spray tan and killer abs.
—Madeleine Marr, Miami Herald, 3 June 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 4 Aug. 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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