Tra từ customs - Từ điển Oxford Advanced Learner 8th

cus·toms BrE [ˈkʌstəmz] NAmE [ˈkʌstəmz] noun plural
1. (usually Customs) (BrE also Customs and Excise) (US also US Customs Service)the government department that collects taxes on goods bought and sold and on goods brought into the country, and that checks what is brought in
• The Customs have seized large quantities of smuggled heroin.
•a customs officer NAmE uses a singular verb with customs in this meaning.
2. the place at a port or an airport where your bags are checked as you come into a country
•to go through customs and passport control
3. the taxes that must be paid to the government when goods are brought in from other countries
•to pay customs on sth
•customs duty/duties
compare ↑excise
See also: ↑Customs and Excise

Word Origin:
[customs] late Middle English: originally in the singular, denoting a customary due paid to a ruler, later ‘duty charged on goods on their way to market’.

Synonyms:
tax
duty • customs • tariff • rates
These are all words for money that you have to pay to the government.
tax • money that you have to pay to the government so that it can pay for public services: ▪ income tax ◇ ▪ tax cuts
duty • a tax that you pay on things that you buy, especially those that you bring into a country: ▪ The company has to pay customs duties on all imports.
customs • tax that is paid when goods are brought in from other countries
tariff • a tax that is paid on goods coming into or going out of a country, often in order to protect industry from cheap imports: ▪ A general tariff was imposed on foreign imports.
rates • (in Britain) a tax paid by businesses to a local authority for land and buildings that they use, and in the past also paid by anyone who owned a house: ▪ Business rates are very high in the city centre.
(a) tax/duty/tariff/rates on sth
to pay an amount of money in tax/duty/customs/rates
to pay (a) tax/duty/customs/tariff/rates
to collect taxes/duties/rates
to increase/raise/reduce taxes/duty/tariffs/rates
to cut taxes/duties/rates
to impose a tax/duty/tariff
to put a tax/duty on sth

Example Bank:
•We cleared customs by five o'clock.
•We got stopped and searched at the Italian customs.
•We had to fill out customs forms on the plane.
•We had to pay customs duties on the beer.
•We were waiting for the goods to receive customs clearance.
•We were waved through customs without a pause.
•You will have to declare these goods when you go through customs.
•the customs post on the border
•the removal of European customs controls
•Customs have seized a large quantity of smuggled heroin.
•Imports from non-EU countries are subject to customs duty of 20 per cent.
•We had to go through customs before we could leave the airport.
•You must pay customs on all imports of alcohol.