reservoir

Từ điển Oxford Advanced Learner 8th

res·er·voir [reservoir reservoirs] BrE [ˈrezəvwɑː(r)] NAmE [ˈrezərvwɑːr] noun
1. a natural or artificial lake where water is stored before it is taken by pipes to houses, etc.
2. (formal)a large amount of sth that is available to be used
3. (technical)a place in an engine or a machine where a liquid is kept before it is used
•an oil reservoir

Word Origin:
mid 17th cent.: from French réservoir, from réserver ‘to reserve, keep’.

Example Bank:
•We can tap into the vast reservoir of information available on the Internet
•The water content of the country's reservoirs had fallen to less than 50% of their capacity.
•They got up early and went for a swim in the reservoir.

• Từ đồng nghĩa / Synonyms:
  source, artificial lake, man-made lake