ab
B1Informal (muscle sense); Technical/Medical (abortion, blood type); Academic (prefix).
Definition
Meaning
A noun denoting the abdominal muscles, especially in fitness contexts (slang). Also an informal abbreviation for 'abortion' in some medical/casual contexts.
In informal and technical usage, can refer to: 1) The muscles of the abdomen. 2) An abortion procedure. 3) The prefix 'ab-' meaning 'away from' (in words like 'abnormal'). 4) A blood type in the ABO system (AB). 5) The month 'Ab' in the Hebrew calendar. 6) A river in Switzerland (the Ab).
Linguistics
Semantic Notes
The meaning is heavily context-dependent. Without context, it is ambiguous. In fitness, it's a countable noun ('work your abs'). The abortion sense is informal and potentially sensitive. The prefix sense is bound and not used alone.
Dialectal Variation
British vs American Usage
Differences
Minimal difference in core meanings. The 'abortion' abbreviation is more common in American informal medical/social discourse. Fitness usage is universal.
Connotations
In both, 'abs' (plural) for muscles is casual, gym-culture slang. The 'abortion' sense carries strong political/social connotations.
Frequency
The muscle sense is high-frequency in fitness/media. The abortion sense is medium-frequency in specific contexts. Other senses are low-frequency.
Vocabulary
Collocations
Grammar
Valency Patterns
have + (adjective) + abs (e.g., have strong abs)work on + (possessive) + abstype AB (blood)undergo an AB (informal medical)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Washboard abs (very defined abdominal muscles)”
- “Six-pack abs”
- “AB and O (referring to blood types)”
Usage
Context Usage
Business
Rarely used. Possibly in fitness industry marketing ('target your abs').
Academic
Used in biology/medicine: 'AB blood group', 'prefix ab- as in abnormal'.
Everyday
Common in fitness conversation: 'I need to work on my abs.'
Technical
Medical: informal for 'abortion'. Immunology: 'AB antigen'. Linguistics: 'prefix ab-'.
Examples
By Part of Speech
verb
British English
- He's abbed and now has a visible six-pack. (informal, rare/derived)
American English
- She's been abbing at the gym every day. (informal, rare/derived)
adverb
British English
- No standard adverbial use.
American English
- No standard adverbial use.
adjective
British English
- He has an AB blood type. (functionally adjective)
American English
- She is AB positive. (functionally adjective)
Examples
By CEFR Level
- He exercises to make his abs strong.
- My blood type is AB.
- You need to do specific exercises to target your abs.
- The patient has AB negative blood, which is quite rare.
- After months of training, his previously soft midsection transformed into rock-hard abs.
- The prefix 'ab-' in 'abnormal' means 'away from' the norm.
- The political debate centred on access to safe and legal AB services.
- The serological test confirmed the presence of both A and B antigens, diagnosing AB blood type.
Learning
Memory Aids
Mnemonic
"ABs are the muscles you see on your ABdomen."
Conceptual Metaphor
STRENGTH IS VISIBILITY (fit abs are 'cut', 'defined', 'showing'). CONTAINER (the abdomen as a container for muscles/organs).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with Russian 'аб' (archaic exclamation).
- The abbreviation 'ab' for abortion does not directly translate; use контекстный перевод (аборт).
- The fitness term 'abs' is often translated as 'пресс' in Russian.
- "AB blood" is 'группа крови AB', not translated.
Common Mistakes
- Using 'ab' as a standalone word for the prefix (it must be attached, e.g., 'abnormal').
- Confusing 'AB' (blood type) with 'A' or 'B'.
- Using singular 'ab' for the muscle (almost always plural 'abs').
- Misspelling as 'abb'.
Practice
Quiz
In which context does 'AB' function most like an adjective?
FAQ
Frequently Asked Questions
Yes, but it's primarily an abbreviation or a slang term. It's listed in dictionaries as a noun for abdominal muscle (usually plural 'abs'), an informal term for abortion, and as a symbol for the AB blood type.
It depends on the meaning. 'AB' for blood type is formal. The prefix 'ab-' is formal in linguistic/etymological discussion. 'Abs' for muscles is informal. 'Ab' for abortion is informal and context-sensitive.
Because the abdominal region is comprised of several distinct muscle groups (rectus abdominis, obliques, etc.), so referring to them collectively in the plural is more accurate in casual speech.
Assuming it has one clear meaning. Learners must use context to distinguish between the muscle slang, the medical abbreviation, the blood type, and the linguistic prefix.