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
Tommy McArdle, People.com, 27 Mar. 2025
The aches in your back, hips, and knees could be signs to work on your abs
Published: Mar 21, 2025
Amber Sayer
from Yoga Journal
(Photo: Calin Van Paris/Canva)
Amber Sayer is a fitness, nutrition, and wellness writer and editor.
—Amber Sayer, Outside Online, 21 Mar. 2025
Paired with other forms of exercise, ab rollers workout your arms, abs and shoulders.
—Christopher Murray, Fox News, 19 Mar. 2025
Another image captures him in white underwear against a three-way mirror, showcasing his toned physique and rock-hard abs from multiple angles.
—Isabela Raygoza, Billboard, 17 Mar. 2025
See All Example Sentences for ab
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Noun
The Spider-Man actor was seen on set just one day after his costar Matt Damon was photographed sporting an impressive beard and toned abs while filming scenes for the movie in Favignana, Italy.
—Tommy McArdle, People.com, 27 Mar. 2025
The aches in your back, hips, and knees could be signs to work on your abs
Published: Mar 21, 2025
Amber Sayer
from Yoga Journal
(Photo: Calin Van Paris/Canva)
Amber Sayer is a fitness, nutrition, and wellness writer and editor.
—Amber Sayer, Outside Online, 21 Mar. 2025
Paired with other forms of exercise, ab rollers workout your arms, abs and shoulders.
—Christopher Murray, Fox News, 19 Mar. 2025
Another image captures him in white underwear against a three-way mirror, showcasing his toned physique and rock-hard abs from multiple angles.
—Isabela Raygoza, Billboard, 17 Mar. 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 3 Apr. 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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