ABの定義と意味 - メリアム・ウェブスター

AB Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition noun (1) abbreviation (1) noun (2) noun (3) abbreviation (2) prefix noun 6 noun (1) abbreviation (1) noun (2) noun (3) abbreviation (2) prefix Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical More from M-W Show more Show more Citation Kids Medical More from M-W Save Word To save this word, you'll need to log in. Log In ab 1 of 6 noun (1) ˈab plural abs : an abdominal muscle — usually used in plural ab 2 of 6 abbreviation (1) about Ab 3 of 6 noun (2) ˈäb ˈäv ˈȯv : 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 AB 4 of 6 noun (3) ˈā-ˈbē : 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 5 of 6 abbreviation (2) 1 able seaman; able-bodied seaman 2 abort; abortion 3 airborne 4 airman basic 5 Alberta 6 [New Latin artium baccalaureus ] bachelor of arts ab- 6 of 6 prefix : from : away : off ab axial Examples of ab in a Sentence Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . 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 The abs shift to corns-on-the-cob, and then to popping popcorn when (in a not unprecedented K-pop scenario) a button flies off of Abby’s shirt, revealing more skin. — Kayti Burt, Time , 21 Aug. 2025 The settlements and judgments resulting from AB 218 claims have already reached the billions. — Kristen Taketa, Mercury News , 18 Aug. 2025 See All Example Sentences for ab Word History Etymology Noun (2) Hebrew Ābh Prefix Middle English, from Anglo-French & Latin; Anglo-French, from Latin ab-, abs-, a- , from ab, a — more at of First Known Use Noun (1) 1956, in the meaning defined above Noun (2) circa 1771, in the meaning defined above Noun (3) 1927, in the meaning defined above Time Traveler The first known use of ab was circa 1771 See more words from the same year Phrases Containing ab ab initio ab ovo Rhymes for ab cab crab dab drab fab gab grab jab lab mab nab rab See All Rhymes for ab Browse Nearby Words AB ab Ab See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Ab.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/ab. Accessed 3 May. 2026. Copy Citation Kids Definition ab- prefix : from : away : departing from ab normal Etymology Prefix Latin ab- "from, away" Medical Definition ab 1 of 4 noun ˈab : abdominal — usually used in plural highly developed abs ab exercises ab 2 of 4 abbreviation 1 or AB abort; abortion 2 about AB 3 of 4 noun ˈā-ˈbē : 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 abbreviation 1 aid to blind 2 [Latin artium baccalaureus ] bachelor of arts More from Merriam-Webster on ab Nglish: Translation of ab for Spanish Speakers Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day métier See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' Why is '-ed' sometimes pronounced at the end of a word? See More Popular in Wordplay See More The Longest Long Words List 9 Other Words for Beautiful The Words of the Week - May 1 Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List 9 Other Words for Beautiful See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All