Standard Lemma guide

ab

adj · adv · name · noun · prep · verb · 38 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˌeɪˈbiː/
  • rhymes with -eɪbi
  • /æb/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -æb
  • homophone: abb
  • homophone: Ab
  • US: /ɑb/
  • US: /æb/
  • homophone: ab
  • CMU ARPABET: AE1 B Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: EY1 B IY1 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Initialism of airborne.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Initialism of antiballistic.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Initialism of at bat.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism, not-comparable

Topics: ball-games, baseball, games, hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adv

Meaning 4

Abbreviation of about.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

name

Meaning 5

Abbreviation of Alberta: a province of Canada.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

name

Meaning 6

Initialism of Artium baccalaureus.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

name

Meaning 7

Initialism of Aryan Brotherhood, a US white supremacist, neo-Nazi prison gang and crime syndicate.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: 12

Antonyms: none provided

8

name

Meaning 8

Initialism of Anheuser-Busch.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

name

Meaning 9

Av.

Definition source: English Wiktionary via Wiktextract

Usage: Judaism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

name

Meaning 10

A diminutive of the male given name Abner, from Hebrew, occasionally used as a formal given name.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

Clipping of abdominal muscle .

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, clipping, informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

noun

Meaning 12

An abscess caused by injecting an illegal drug, usually heroin.

Definition source: English Wiktionary via Wiktextract

Usage: slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

noun

Meaning 13

Abbreviation of abortion.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

noun

Meaning 14

The early stages of; the beginning process; the start.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

noun

Meaning 15

Initialism of able seaman or able-bodied seaman.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

16

noun

Meaning 16

Initialism of afterburner.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

17

noun

Meaning 17

Initialism of aid to the blind.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

18

noun

Meaning 18

Initialism of airbase.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

Topics: aeronautics, aerospace, aviation, business, engineering, government, military, natural-sciences, physical-sciences, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

19

noun

Meaning 19

Abbreviation of alkylbenzene.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, uncountable

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

20

noun

Meaning 20

Initialism of antibody.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

21

noun

Meaning 21

Initialism of artificial breeding.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

22

noun

Meaning 22

Initialism of assembly bill.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

Topics: government, law, politics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

23

noun

Meaning 23

A blood type of the ABO system that has both blood antigens and may receive all blood types, and donate to AB.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

24

noun

Meaning 24

A blood type of the ABO system that has both blood antigens and may receive all blood types, and donate to AB.

A person with this blood type.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

25

noun

Meaning 25

Initialism of adult baby.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

26

noun

Meaning 26

Initialism of asymmetric bars.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, countable, initialism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

27

noun

Meaning 27

A halal snack pack consisting of doner meat topped with chips, tomato sauce, chilli sauce, barbecue sauce, and garlic sauce.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

28

noun

Meaning 28

Symbol for antibody.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, symbol

Topics: immunology, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Ig, immunoglobulin

Antonyms: Ag, antigen

29

noun

Meaning 29

In Egyptian belief, the heart and will and conscience of a person, especially that of the recently deceased which proceeds to the afterlife and is weighed as evidence during his or her judgement.

Definition source: English Wiktionary via Wiktextract

Usage: dated

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

30

noun

Meaning 30

An Ancient Egyptian amulet in the shape of a heart (ib).

Definition source: English Wiktionary via Wiktextract

Usage: dated

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

31

noun

Meaning 31

Abbreviation of Abbot.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, uncountable

Qualifier: title

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

32

prep

Meaning 32

Abbreviation of about.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

33

verb

Meaning 33

To abseil.

Definition source: English Wiktionary via Wiktextract

Usage: informal

Topics: climbing, hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

34

verb

Meaning 34

Abbreviation of abort.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

35

noun

Meaning 35

the blood group whose red cells carry both the A and B antigens

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: type AB, group AB

Antonyms: none provided

Broader terms: blood group, blood type

36

noun

Meaning 36

the muscles of the abdomen

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: abdominal, abdominal muscle

Antonyms: none provided

Broader terms: skeletal muscle, striated muscle

Narrower terms: external oblique muscle, musculus obliquus externus abdominis, abdominal external oblique muscle, oblique, transversus abdominis muscle, transverse muscle of abdomen, musculus transversalis abdominis, transversus abdominis

37

noun

Meaning 37

a bachelor's degree in arts and sciences

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Bachelor of Arts, BA, Artium Baccalaurens

Antonyms: none provided

Broader terms: bachelor's degree, baccalaureate

38

noun

Meaning 38

the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Av

Antonyms: none provided

Broader terms: Jewish calendar month

History

Etymology

Abbreviations.

Borrowed from Hebrew אָב (āv).

Short form of Abner.

Abbreviation of abscess.

From the spelling books and the fact that it was the first of the letter combinations.

The first letter of each of the two syllables of antibody.

From the nineteenth-century Lepsius transcription, ȧb, of Egyptian jb (“heart, mind, intention”), ib:Z1.

Abbreviation.

Across languages

Translations

12 source translations are retained for this English entry.

  • Chinese Mandarin: 腹肌 (fùjī) — abdominal muscle
  • Esperanto: ventromuskolo — abdominal muscle
  • Finnish: vatsalihas — abdominal muscle
  • French: abdo — abdominal muscle
  • German: Bauchmuskeln — abdominal muscle
  • Japanese: 腹筋 (fukkin) — abdominal muscle
  • Korean: 아브 (abeu) — abdominal muscle
  • Polish: mięsień prosty brzucha — abdominal muscle
  • Russian: пресс (press) — abdominal muscle
  • Vietnamese: múi — abdominal muscle
  • Vietnamese: múi cơ — abdominal muscle
  • Vietnamese: cơ bụng — abdominal muscle