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noun A2 Elementary Very common

base

bays

Base (noun) means the lowest part of something, on which it stands or rests; a foundation. Example: “They built the statue on a solid stone base.”

noun
1
The lowest part of something, on which it stands or rests; a foundation.
"They built the statue on a solid stone base."
"Check the base of the lamp for the model number."
2
A place used as the main point of operations for a person, group, or military force.
"The soldiers returned to base after the exercise."
"The company set up its Asian base in Singapore."
verb
1
To use something as a starting point or foundation for a decision, argument, or story.
"The film is based on a true story."
"He based his decision on the sales figures from last quarter."
adjective
1
Morally low; without honour or decency.
"It was a base betrayal of his closest friend."

How to use base

Learner’s notes

In plain EnglishThe bottom or foundation of something — literal (like a statue) or figurative (like an idea or army camp).

Common mistake

As an adjective meaning "morally low" (a base motive), this is a completely different sense from the noun meaning "foundation" — context makes it clear which is meant.

Common pairings
home base military base based on base of operations

Word forms

based past tense, bases singular

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

Fill the gap

Can you complete this real example?

They built the statue on a solid stone _____.

Etymology

From Old French base, from Latin basis, from Greek basis, "step" or "foundation." A doublet of basis and bass.

Origin: Latin

Related words

Rhymes for base

See all rhymes for base →

Frequently asked questions

What does “base” mean?

The word “base” means the lowest part of something, on which it stands or rests; a foundation. In plain terms, the bottom or foundation of something — literal (like a statue) or figurative (like an idea or army camp).

How do you pronounce “base”?

“Base” is pronounced bays (/beɪs/ in IPA).

How do you use “base” in a sentence?

Here is “base” used in a sentence: “They built the statue on a solid stone base.”

What part of speech is “base”?

Depending on how it is used, “base” can be a noun, a verb and an adjective.

Where does the word “base” come from?

The word “base” comes from Latin. From Old French base, from Latin basis, from Greek basis, "step" or "foundation." A doublet of basis and bass.

Is “base” a common word?

“Base” is a very common word in modern English, usually learned at around the A2 level.

How many meanings does “base” have?

“Base” has 4 distinct senses listed in this dictionary. The most common is: the lowest part of something, on which it stands or rests; a foundation.

What is the difference between a base and a foundation?

The two overlap and are often interchangeable. A base is simply the lowest part of something, the part it stands on. A foundation usually refers to a base deliberately built to support a structure, like a building's footings. Every foundation is a base, but not every base is an engineered foundation.

What is an example of a base?

The base of a lamp is the wide, heavy bottom that keeps it upright. Other examples include the base of a mountain, where it meets flat ground, the base of a statue or column, and the base of a triangle. In each case it is the lowest part on which the rest rests.

What is the opposite of a base?

In the sense of the lowest part, the opposite of the base is the top, peak, apex, or summit. The base of a mountain contrasts with its peak, and the base of a glass sits opposite its rim. The base supports, while the top is the highest point, furthest from the ground.

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