American English

How to pronounce base

noun · verb · adjectiveB1Very common word
BAYS

/beɪs/

One syllable.

The bottom part of something that supports it or from which it rises.

Practice out loud

Meanings & examples

noun

The bottom part of something that supports it or from which it rises.

The lamp has a heavy base.

Snow covered the base of the mountain.

Common phrases & grammar

a solid base · the base of a mountain · the base of a building · the base of a lamp

the base of + noun

at the base of + noun

noun

The main support or starting point for an idea, plan, or system.

Trust is the base of a good relationship.

The course gives students a strong base in math.

Good to know

Use basis, not base, in the fixed phrase on the basis of.

Common phrases & grammar

a solid base for · a knowledge base · a broad base of support

a base for + noun

provide a base for + noun

noun

A place where a person, group, or organization works or operates.

The team has a base in Denver.

The rescue workers operated from a mountain base.

Common phrases & grammar

military base · air base · base camp · home base

set up a base in + place

operate from a base in + place

noun

The people who regularly support a person, group, product, or political party.

The singer has a loyal fan base.

The party is trying to attract younger voters to its base.

Common phrases & grammar

customer base · fan base · voter base · support base

the + group/person + 's + base

a + group/product + base

Useful expressions

touch base

To contact someone briefly, usually to share information or make a plan.

I’ll touch base with Maya tomorrow.

off base

Wrong about something; not accurate.

That estimate is way off base.

Related words & forms

Drop the final e before -ing: basing, but keep it before -ed: based.