DictionarymaintainKeep in a condition
verb

maintain

mayn-TAYN/meɪnˈteɪn/

To keep something supported in an established condition.

The mechanic maintains the bicycle by carefully oiling its chain.

A Black mechanic carefully oils a bicycle chain to keep it working.
Etymology

The underlying image is holding something in the hand. This became supporting or preserving it, then keeping it in an existing condition or ensuring that support continues.

In context

Atlantic Physical Therapy Center2:12
and it has a lot of strong muscles to give it some support So this isn't putting a lot of unnecessary strain on my hip and it's allowing me to maintain a neutral spine position
Proper Lifting Techniques

More examples

  • The thermostat maintains a steady temperature.
  • She maintained her balance on the slippery sidewalk.
  • Maintaining a regular sleep schedule helps me feel rested.

Forms

maintain · maintains · maintained · maintaining

maintenance noun — Work needed to keep something functioning well.

Similar words

keep
A broader, everyday word for continuing an existing condition.
preserve
Emphasizes protecting something from damage, decay, or unwanted change.
sustain
Emphasizes supplying what is needed for something to continue.