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tr.v. main·tained, main·tain·ing, main·tains
1. To keep up or carry on; continue: maintain good relations.
2. To keep in an existing state; preserve or retain: maintain one's composure.
3. To keep in a condition of good repair or efficiency: maintain two cars.
a. To provide for; support: maintain a family.
b. To keep in existence; sustain: enough food to maintain life.
5. To defend or hold against criticism or attack: maintained his stand on taxes.
6. To declare to be true; affirm: maintained her innocence.
7. To adhere or conform to; keep: maintain a busy schedule.

[Middle English maintainen, from Old French maintenir, from Medieval Latin manutenēre, from Latin manū tenēre, to hold in the hand : manū, ablative of manus, hand; see man- in Indo-European roots + tenēre, to hold; see ten- in Indo-European roots.]

main·tain′a·bil′i·ty n.
main·tain′a·ble adj.
main·tain′er n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.maintainer - someone who upholds or maintainsmaintainer - someone who upholds or maintains; "firm upholders of tradition"; "they are sustainers of the idea of democracy"
admirer, booster, protagonist, supporter, champion, friend - a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"
References in classic literature ?
Nay," added he, "you yourself will allow it may exist independent of all but one: so will a Mahometan, a Jew, and all the maintainers of all the different sects in the world.
Contract notice: The supply of fuel in the fuel tanks (reservoirs) of sjsc "latvian road maintainer ~needs.
As the maintainer removed what was thought to be all of the fasteners, he began to pull the panels off of the rudder.
Maintainer lines are used for conversion into new CMS lines and restorer lines are subsequently used as male parent in hybrid development program.
Jeremy Howard, a maintainer with the 35th Aircraft Maintenance Squadron.
When the maintainer asked, "What seems to be the problem?
Every pilot, maintainer, and deck handler hopes for successful and safe deployment operations with no glitches or delays.
OJT is two-fold: first, the 3-levels are provided training that gives them the basics necessary to be minimally productive in their particular maintenance discipline and second, they are provided OJT intended to upgrade them from a 3-level apprentice maintainer to a 5-level, journeyman status.
An essential item in a radio maintainer, MOS 25U, preventive maintenance toolkit for troubleshooting the Single Channel Ground and Airborne Radio System, is a portable test set.
One approach is to control the space created from the premature loss of primary teeth by the provision of a space maintainer (SM) appliance [Qudeimat and Fayle, 1998; Christensen and Fields, 2005].
Aviation Structural Mechanic 1st Class (AW) Cody Cearley, a maintainer with Fleet Air Reconnaissance Squadron (VQ) 4, was recently named the Commander, Naval Air Forces (CNAF) Maintainer of the Year.
Chris Wright, senior engineer at Red Hat and Linux security module maintainer.