gei1

Jyutpinggei1
Yalegēi
語素Common

Definition

Base or foundation, particularly the bottom of a building.

neutralother

How it's used

Functions primarily as a bound morpheme in compound words rather than as a standalone noun in daily speech. It appears most frequently in technical or architectural contexts related to construction and structural integrity. When discussing the literal bottom of an object, speakers usually prefer terms like 底 or 底部.

Examples

The foundation of this building is very stable.
Do you know how deep the foundation needs to be?

Related words

Common phrases

foundation
to lay a foundation

Common mistake

Do not use this word to mean a base in the sense of a military or organizational headquarters, as that is expressed by 基地.

Grammar color guide

Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector