MAINTENANCE
care, maintenance, upkeep
(noun) activity involved in maintaining something in good working order; “he wrote the manual on car care”
maintenance, criminal maintenance
(noun) the unauthorized interference in a legal action by a person having no interest in it (as by helping one party with money or otherwise to continue the action) so as to obstruct justice or promote unnecessary litigation or unsettle the peace of the community; “unlike champerty, criminal maintenance does not necessarily involve personal profit”
sustenance, sustentation, sustainment, maintenance, upkeep
(noun) the act of sustaining life by food or providing a means of subsistence; “they were in want of sustenance”; “fishing was their main sustainment”
alimony, maintenance
(noun) court-ordered support paid by one spouse to another after they are separated
maintenance
(noun) means of maintenance of a family or group
Source: WordNet® 3.1
Etymology
Noun
maintenance (usually uncountable, plural maintenances)
Actions performed to keep some machine or system functioning or in service.
(legal) A tort committed when a third party who does not have a bona fide interest in a lawsuit provides help or acquires an interest to a litigant's lawsuit.
(legal, UK) Alimony, a periodical payment or a lump sum made or ordered to be made to a spouse after a divorce.
(legal) Child support.
Money required or spent to provide for the needs of a person or a family.
(biology) The natural process which keeps an organism alive.
Source: Wiktionary
Main"te*nance, n. Etym: [OF. maintenance. See Maintain.]
1. The act of maintaining; sustenance; support; defense; vindication.
Whatsoever is granted to the church for God's honor and the
maintenance of his service, is granted to God. South.
2. That which maintains or supports; means of sustenance; supply of
necessaries and conveniences.
Those of better fortune not making learning their maintenance. Swift.
3. (Crim. Law)
Definition: An officious or unlawful intermeddling in a cause depending
between others, by assisting either party with money or means to
carry it on. See Champerty. Wharton. Cap of maintenance. See under
Cap.
Source: Webster’s Unabridged Dictionary 1913 Edition