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The combination of all technical, administrative, and managerial actions intended to retain it in or restore it to a state in which it can reliably perform a required function. Maintenance can be planned or unplanned.
The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure and supporting utilities in industrial, business, and residential installations. Terms such as "predictive" or "planned" maintenance describe various cost-effective practices aimed at keeping equipment operational; these activities occur either before or after a potential failure.


English
Etymology
From Middle English mayntenaunce, from Old French maintenance, from maintenir, from Latin manus tenēre (“to hold in the hand”). By surface analysis, maintain + -ance.
Note that maintain has undergone a sound and spelling change, hence is spelt with -tain-, rather than the -ten- still found in maintenance.
Pronunciation
- IPA(key): /ˈmeɪnt(ə)nəns/, /ˈmeɪntɪnəns/, [ˈmẽɪ̃(n)ʔ(ə)nəns]
Noun
maintenance (usually
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