Synonyms for maintain

verb

1. To uphold

   support, hold up, advance, keep; see support 2, sustain 1.

2. To assert

   state, affirm, attest; see declare 1, report 1, say.

3. To keep ready for use

   preserve, keep, conserve, repair, withhold, renew, cache, reserve, defer, hold back, have in store, keep on, care for, save, put away, set aside, store up, husband, keep for, keep prepared, lay aside, lay away, set by, keep on hand, keep in reserve, set apart, keep in condition, keep in readiness, keep up, keep aside, control, hold over, manage, direct, have, own, sustain, secure, stick to, stand by; see also prepare 1.

   Antonyms waste*, neglect, consume.

4. To continue

   carry on, persevere, keep up, keep on; see continue 1.

5. To support

   provide for, care for, take care of, keep; see support 5, sustain 2. See syn. study at support.