Tra từ expand - Từ điển Oxford Advanced Learner 8th

ex·pand AW [expand expands expanded expanding] BrE [ɪkˈspænd] NAmE [ɪkˈspænd] verb
1. intransitive, transitive to become greater in size, number or importance; to make sth greater in size, number or importance
• Metals expand when they are heated.
• Student numbers are expanding rapidly.
•A child's vocabulary expands through reading.
•The waist expands to fit all sizes.
•~ sth In breathing the chest muscles expand the rib cage and allow air to be sucked into the lungs.
•The new system expanded the role of family doctors.
•There are no plans to expand the local airport.
Opp: ↑contract
2. intransitive, transitive if a business expands or is expanded, new branches are opened, it makes more money, etc
•an expanding economy (= with more businesses starting and growing)
•~ sth We've expanded the business by opening two more stores.
3. intransitive to talk more; to add details to what you are saying
• I repeated the question and waited for her to expand.
Derived: ↑expand on something
Verb forms:

Word Origin:
late Middle English: from Latin expandere ‘to spread out’, from ex- ‘out’ + pandere ‘to spread’.

Thesaurus:
expand verb
1. I, T
•Metals expand when they are heated.
•There are plans to expand the local airport.
grow • • extend • • enlarge • • widen • • broaden • • lengthen • • stretch •
Opp: contract
expand/grow/extend/enlarge/widen/lengthen/stretch to a particular amount
expand/grow/extend/enlarge/widen/broaden/lengthen by a particular amount
expand/extend/enlarge/widen/broaden sth's scope/range
2. I, T (especially business)
•The company has expanded into the mail order business.
branch out • • broaden • |especially business diversify •
expand/branch out/diversify into sth
expand/broaden your horizons
a/an company/firm/economy expands/diversifies

Example Bank:
•American publishers attempted to expand their markets overseas.
•Both companies are aggressively expanding their business models in Europe.
•He has plans to expand beyond computer consulting to include engineer training.
•I needed to expand my possibilities of making a living.
•Internet companies expanding abroad
•Several brands have successfully expanded their market presence.
•The business has expanded greatly over the last year.
•The company is looking to expand its operations overseas.
•The number of managers has expanded from 700 to 1 300.
•The store has helped expand the British cheese market by encouraging small dairy farmers.
•The town has expanded into a city.
•A child's vocabulary expands through reading.
•It's a country with an expanding economy.
•We've expanded the business by opening two more stores.