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
Ryan Gaydos, FOXNews.com, 25 Aug. 2025
In May 2024, the La Jolla Traffic & Transportation Board gave its support to implementing AB 43.
—Ashley MacKin Solomon, San Diego Union-Tribune, 22 Aug. 2025
Ryan Gaydos, FOXNews.com, 25 Aug. 2025
In May 2024, the La Jolla Traffic & Transportation Board gave its support to implementing AB 43.
—Ashley MacKin Solomon, San Diego Union-Tribune, 22 Aug. 2025
Jackson Thompson, FOXNews.com, 23 Oct. 2025
The faculty group said the question was specifically meant to address the controversial antisemitism bill — AB 715 — Newsom signed earlier this month, which establishes a new Office of Civil Rights and a statewide Antisemitism Prevention Coordinator in an effort to rein in antisemitism in schools.
—Molly Gibbs, Mercury News, 23 Oct. 2025
See All Example Sentences for ab
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Noun
Multiple parents of Riverside Poly players, and a school board member, told Fox News Digital the forfeit was in response to the trans athlete on Jurupa Valley, AB Hernandez.
—Ryan Gaydos, FOXNews.com, 25 Aug. 2025
In May 2024, the La Jolla Traffic & Transportation Board gave its support to implementing AB 43.
—Ashley MacKin Solomon, San Diego Union-Tribune, 22 Aug. 2025
Noun
Multiple parents of Riverside Poly players, and a school board member, told Fox News Digital the forfeit was in response to the trans athlete on Jurupa Valley, AB Hernandez.
—Ryan Gaydos, FOXNews.com, 25 Aug. 2025
In May 2024, the La Jolla Traffic & Transportation Board gave its support to implementing AB 43.
—Ashley MacKin Solomon, San Diego Union-Tribune, 22 Aug. 2025
Noun
The loss, presumably, marked the end of trans athlete AB Hernandez's high school volleyball career.
—Jackson Thompson, FOXNews.com, 23 Oct. 2025
The faculty group said the question was specifically meant to address the controversial antisemitism bill — AB 715 — Newsom signed earlier this month, which establishes a new Office of Civil Rights and a statewide Antisemitism Prevention Coordinator in an effort to rein in antisemitism in schools.
—Molly Gibbs, Mercury News, 23 Oct. 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 31 Oct. 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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