Simple Definition of maintain
: to cause (something) to exist or continue without changing
: to keep (something) in good condition by making repairs, correcting problems, etc.
: to continue having or doing (something)
Full Definition of maintain
1 : to keep in an existing state (as of repair, efficiency, or validity) : preserve from failure or decline <maintain machinery>
2 : to sustain against opposition or danger : uphold and defend <maintain a position>
4 a : to support or provide for <has a family to maintain> b : sustain <enough food to maintain life>
5 : to affirm in or as if in argument : assert <maintained that the earth is flat>
Examples of maintain in a sentence
They have always maintained high standards of professional conduct.
He has found it difficult to maintain a healthy weight.
The company has done a poor job of maintaining its computer network.
It was obvious that the house had been poorly maintained.
She was finding it hard to maintain her balance.
She still maintains a close relationship with her college roommate.
It's difficult to maintain a correspondence when we're both so busy.
The pilot was struggling to maintain control of the aircraft.
The police say that they will do whatever is necessary to maintain law and order.
Origin of maintain
Middle English mainteinen, from Anglo-French maintenir, maynteiner, from Medieval Latin manutenēre, from Latin manu tenēre to hold in the hand
First Known Use: 14th century
Synonym Discussion of maintain
MAINTAIN Defined for Kids
Definition of maintain for Students
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