Word Frequency
maintenance
(ˈmeɪntɪnəns)
noun
1. 
the act of maintaining or the state of being maintained
2. 
a means of support; livelihood 
3. (modifier)
of or relating to the maintaining of buildings, machinery, etc
 maintenance man
4.  law
(formerly unlawful) the interference in a legal action by a person having no interest in it, as by providing funds to continue the action
  See also champerty 5.  law
a provision ordered to be made by way of periodical payments or a lump sum, as after a divorce for a spouse 
6.  computing
a. 
the correction or prevention of faults in hardware by a programme of inspection and the replacement of parts
b. 
the removal of existing faults and the modification of software in response to changes in specification or environment 
Word origin
C14: from Old French; see maintain