Meaning of “expand” in the English Dictionary

"expand" in British English

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expandverb [ I or T ]

uk /ɪkˈspænd/ us /ɪkˈspænd/

B2 to increase in size, number, or importance, or to make something increase in this way:

The air in the balloon expands when heated.
They expanded their retail operations during the 1980s.

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Phrasal verb(s)

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

"expand" in American English

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expandverb [ I/T ]

us /ɪkˈspænd/

to increase something in size, number, or importance:

[ I ] The air in the balloon expands when heated.
[ T ] They expanded their number of stores significantly in the 1990s.
expansion
noun [ U ] us /ɪkˈspæn·ʃən/

Expansion into new areas of research might be possible.

Phrasal verb(s)

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

"expand" in Business English

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expandverb [ I or T ]

uk /ɪkˈspænd/ us ECONOMICS, COMMERCE

to increase in size, number, or importance, or to make something increase in this way:

expand into sth These companies need to expand into new markets because they have reached market saturation at home.
expand rapidly/greatly/significantly
expand the range/scope/capacity Supermarkets continue to expand the range of products and services offered in their outlets.
Production capacity could expand by up to 30%, thus bringing down prices.

Phrasal verb(s)

(Definition of “expand” from the Cambridge Business English Dictionary © Cambridge University Press)