Open English Wordnet
Nouns
(n)care, maintenance, upkeepactivity involved in maintaining something in good working order“he wrote the manual on car care”
(n)sustenance, sustentation, sustainment, maintenance, upkeepthe act of sustaining life by food or providing a means of subsistence“they were in want of sustenance”, “fishing was their main sustainment”
(n)maintenance, criminal maintenancethe 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”