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
Cheryl Tiu, Forbes, 5 Mar. 2025
The skin-baring white gown, which showed off the actress’s abs — and sprawling floral rib tattoo — is a Demi-Couture piece from the fashion house’s Spring 2004 collection, according to vintage and couture retailer OpulentAddict, who sourced it for Palmer’s stylist Molly Dickson.
—Bailey Richards, People.com, 3 Mar. 2025
Butterfly Kicks Lower abs can be challenging to isolate, but butterfly kicks are the perfect exercise for the job.
—Jakob Roze, Health, 26 Feb. 2025
No one should have quite such visible abs at 43 years old.
—Outside Online, 19 Feb. 2025
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Noun
On March 13, at 6:00PM, fitness model and trainer Allegra Paris will be leading a glutes and abs focused sculpt class, using bodyweight and resistance band exercises, in partnership with Seaav activewear, also at The Upside rooftop from 6:00PM to 8:30PM.
—Cheryl Tiu, Forbes, 5 Mar. 2025
The skin-baring white gown, which showed off the actress’s abs — and sprawling floral rib tattoo — is a Demi-Couture piece from the fashion house’s Spring 2004 collection, according to vintage and couture retailer OpulentAddict, who sourced it for Palmer’s stylist Molly Dickson.
—Bailey Richards, People.com, 3 Mar. 2025
Butterfly Kicks Lower abs can be challenging to isolate, but butterfly kicks are the perfect exercise for the job.
—Jakob Roze, Health, 26 Feb. 2025
No one should have quite such visible abs at 43 years old.
—Outside Online, 19 Feb. 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 12 Mar. 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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