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To keep up or carry on; continue: maintain good relations.
(verb-transitive)
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To keep in an existing state; preserve or retain: maintain one's composure.
(verb-transitive)
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To keep in a condition of good repair or efficiency: maintain two cars.
(verb-transitive)
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To provide for; support: maintain a family.
(verb-transitive)
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To keep in existence; sustain: enough food to maintain life.
(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.