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noun Common

reservoir

REHZ-uh-vwah

Reservoir (noun) means a natural or artificial lake used to store water for supply. Example: “The town's drinking water comes from a reservoir in the hills.”

noun
1
A natural or artificial lake used to store water for supply.
"The town's drinking water comes from a reservoir in the hills."
2
A store or supply of something, often figurative.
"She drew on a deep reservoir of patience with the new trainees."
"The library is a reservoir of knowledge for the whole community."

How to Use Reservoir

Learner’s notes

In plain EnglishA place — literal or figurative — where something is stored up and drawn from as needed.

Common pairings
water reservoir a reservoir of talent reservoir levels

Word Forms

reservoired past tense, reservoirs plural, reservoirs singular

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Test yourself on “reservoir” A quick quiz — meaning, synonyms & usage

Fill the Gap

Can you complete this real example?

The town's drinking water comes from a _____ in the hills.

Etymology

From French réservoir, "storehouse", from réserver, "to reserve, keep".

Origin: French

Related Words

Rhymes for reservoir

See all rhymes for reservoir →

Frequently Asked Questions

What does “reservoir” mean?

The word “reservoir” means a natural or artificial lake used to store water for supply. In plain terms, a place — literal or figurative — where something is stored up and drawn from as needed.

How do you pronounce “reservoir”?

“Reservoir” is pronounced REHZ-uh-vwah (/ˈɹɛz.ə(ɹ).vwɑɹ/ in IPA).

How do you use “reservoir” in a sentence?

Here is “reservoir” used in a sentence: “The town's drinking water comes from a reservoir in the hills.”

What part of speech is “reservoir”?

“Reservoir” is a noun.

Where does the word “reservoir” come from?

The word “reservoir” comes from French. From French réservoir, "storehouse", from réserver, "to reserve, keep".

Is “reservoir” a common word?

“Reservoir” is a fairly common word in modern English.

How many meanings does “reservoir” have?

“Reservoir” has 2 distinct senses listed in this dictionary. The most common is: a natural or artificial lake used to store water for supply.

What is the difference between a reservoir and a dam?

A dam is the barrier built across a river to hold back water, while a reservoir is the large body of stored water that collects behind it. In short, the dam is the wall and the reservoir is the lake it creates.

What is the difference between a reservoir and a lake?

A lake is usually a natural body of water, while a reservoir is often artificial and made specifically to store water for supply. Some reservoirs are natural lakes adapted for storage, but the word stresses the purpose of holding a supply of water.

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