maintain

(v) keep in a certain state, position, or activity; e.g., "keep clean"
- hold in place
- She always held herself as a lady
- The students keep me on my toes
hold, keep,
(v) keep in safety and protect from harm, decay, loss, or destruction
- We preserve these archeological findings
- The old lady could not keep up the building
- children must be taught to conserve our national heritage
- The museum curator conserved the ancient manuscripts
conserve, preserve, keep up,
(v) supply with necessities and support
- She alone sustained her family
- The money will sustain our good cause
- There's little to earn and many to keep
sustain, keep,
(v) state categorically assert, asseverate,
(v) have and exercise
- wield power and authority
wield, exert,
(v) maintain for use and service
- I keep a car in the countryside
- She keeps an apartment in Paris for her shopping trips
keep,
(v) maintain by writing regular records
- keep a diary
- maintain a record
- keep notes
keep,
(v) state or assert
- He maintained his innocence
defend,
(v) support against an opponent
- The appellate court upheld the verdict
uphold,
(v) stick to correctly or closely
- The pianist kept time with the metronome
- keep count
- I cannot keep track of all my employees
keep, observe,

hold keep conserve preserve keep up sustain assert asseverate wield exert defend uphold observe

maintainable maintained maintainer