swab
B2Neutral to informal; technical in medical/cleaning contexts.
Definition
Meaning
A small piece of soft, absorbent material, typically attached to the end of a stick, used for cleaning, applying medication, or collecting samples.
The act of cleaning, mopping, or sampling with such an implement; also, a specimen collected on a swab for testing; informally, a sailor.
Linguistics
Semantic Notes
As a verb, implies an action of dabbing, wiping, or mopping; the nautical noun (meaning a sailor) is dated and informal.
Dialectal Variation
British vs American Usage
Differences
No major differences in core meaning. The verb 'to swab' is used equally. The dated slang 'swab' for a sailor is more common in British nautical history.
Connotations
In medical contexts, 'swab' is standard. In cleaning, 'mop' is often more common for floors; 'swab' can sound slightly more technical or specific.
Frequency
Comparable frequency. Slightly higher in UK due to historical naval usage in literature.
Vocabulary
Collocations
Grammar
Valency Patterns
[VN] (swab something)[V] (swab down something)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “swab the decks (to clean thoroughly, often in preparation)”
Usage
Context Usage
Business
Rare. Might appear in procurement for medical/cleaning supplies.
Academic
Common in medical/biological literature regarding sample collection.
Everyday
Common in domestic cleaning and healthcare contexts (e.g., 'cotton swab').
Technical
Standard in medical, forensic, and microbiological fields for specimen collection.
Examples
By Part of Speech
verb
British English
- The nurse will swab the wound with antiseptic.
- The crew were ordered to swab down the decks at dawn.
American English
- Please swab the sample site before injecting.
- He swabbed the counter with a disinfectant wipe.
Examples
By CEFR Level
- Use a cotton swab to clean your ears gently.
- The doctor took a swab from my throat.
- After the spill, she quickly swabbed the floor with a wet cloth.
- The lab tested the nasal swab for viruses.
- Forensic experts swabbed the surface for potential DNA evidence.
- The old sailor reminisced about his days as a young swab on a warship.
- The protocol mandates that a sterile swab be used for each culture plate to avoid cross-contamination.
- They systematically swabbed the entire area, collecting microbial samples from various microhabitats.
Learning
Memory Aids
Mnemonic
Think of a SWAB as a Small Wad Absorbing stuff. Or, a Sailor With A Brush (for swabbing the deck).
Conceptual Metaphor
CLEANING IS PURIFYING / COLLECTING IS CAPTURING.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Не путать с 'швабра' (mop). 'Swab' меньше и чаще для точечной очистки/забора. Моряк 'swab' — устаревший жаргон, не 'слабак'.
Common Mistakes
- Using 'swab' for a large mop (use 'mop' for floors). Confusing 'swap' (to exchange) with 'swab'. Using 'swab' as a verb without an object (e.g., 'He swabbed' is incomplete).
Practice
Quiz
In which context is the word 'swab' LEAST likely to be used?
FAQ
Frequently Asked Questions
No, it's also a verb meaning to clean or apply with a swab.
A swab is typically a small, handheld implement for precise cleaning or sampling. A mop is a larger tool with a long handle for cleaning floors.
Yes, but it's dated/informal slang for a sailor, especially a low-ranking one.
In everyday American English, 'Q-tip' (a brand name) is often used for a cotton swab. However, in technical/medical contexts, 'swab' or 'applicator' is preferred.