Meaning of EXPANSION in English

ex ‧ pan ‧ sion W3 AC /ɪkˈspænʃ ə n/ BrE AmE noun

[ Word Family: verb : ↑ expand ; noun : ↑ expansion ; adjective : ↑ expandable ]

1 . [uncountable and countable] when something increases in size, range, amount etc SYN growth ⇨ expand

expansion of

The rapid expansion of cities can cause social and economic problems.

expansion in

an expansion in student numbers

2 . [uncountable and countable] when a company, business etc becomes larger by opening new shops, factories etc ⇨ expand :

The industry underwent a period of rapid expansion.

3 . [countable] an idea, story etc that is based on one that is simpler or more general:

The novel is an expansion of a short story he wrote about forty years ago.

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COLLOCATIONS (for Meanings 1 & 2)

■ ADJECTIVES/NOUN + expansion

▪ a big expansion

Last year saw a big expansion at the company.

▪ a great/huge/massive expansion (=very big)

There are plans for a massive expansion of the oil and gas industries.

▪ a major/significant expansion (=large and important)

The company is planning a major expansion of its retail outlets.

▪ a rapid expansion

During the 1990s, there was a rapid expansion in student numbers.

▪ a steady expansion

There has been a steady expansion of the self-employed sector of the economy.

▪ further expansion

Investors think the hotel chain is ripe for further expansion.

▪ economic expansion

Economic expansion in India and China is set to continue.

▪ business/commercial expansion

These new measures could limit business expansion.

▪ urban expansion

We are seeing uncontrolled urban expansion in many African cities.

■ verbs

▪ expansion takes place ( also expansion occurs formal )

The biggest expansion occurred in the volume of small issue government bonds.

■ expansion + NOUN

▪ an expansion plan

The city’s ambitious expansion plans will require major investment.

▪ an expansion programme

Such an aggressive expansion programme could double the business in five years.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.