base
//beɪs//
Noun
The lowest part or bottom of something, especially the part on which it rests or is supported.
The lamp has a heavy base to keep it stable.
A main place where someone works or stays, or where an organization or military force operates from.
The company's base is in Tokyo.
A starting point or foundation from which something can develop.
This course provides a good base for further study.
In baseball, one of the four positions that a runner must touch in order to score.
The runner slid safely into second base.
A substance used as a foundation for makeup or paint.
Apply a base before putting on your foundation.
In chemistry, a substance that can accept protons or donate electrons, typically having a pH greater than 7.
Sodium hydroxide is a strong base with a pH of 14.
Synonym
Verb
To use something as a foundation or starting point for something else.
The movie is based on a true story.
To have a particular place as the main location for work or operations.
The company is based in Tokyo.
Adjective
Morally low or without honor; dishonorable or ignoble.
His base betrayal of his friends shocked everyone.
Of low quality or value; inferior.
The counterfeit coins were made of base metal.