Meaning of “dust” in the English Dictionary

"dust" in British English

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dustnoun [ U ]

uk /dʌst/ us /dʌst/

B1 dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces of soil, sand, or other substances:

The furniture was covered in dust and cobwebs.
A cloud of dust rose in the air as the car roared past.
coal dust

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dustverb

uk /dʌst/ us /dʌst/

dust verb (CLEAN)

[ I or T ] to use a cloth to remove dust from the surface of something:

I was dusting the mantelpiece when I noticed a crack.

Phrasal verb(s)

(Definition of “dust” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"dust" in American English

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dustnoun [ U ]

us /dʌst/

dry dirt in the form of powder that covers surfaces inside a building, or very small dry pieces of earth, sand, or other substances:

The furniture was covered with dust.
dusty
adjective us /ˈdʌs·ti/

Piles of dusty books lay on the floor.

dustverb [ I/T ]

us /dʌst/

to remove dry dirt in the form of powder from a surface:

[ I/T ] I was dusting (her desk) when I noticed the piece of paper.

Phrasal verb(s)

(Definition of “dust” from the Cambridge Academic Content Dictionary © Cambridge University Press)