You asked:

what is another word for maintenance

  • "Maintenance"'s synonyms include "alimony", "care", "criminal maintenance", "sustainment", "sustenance", "sustentation" and "upkeep".
  • "alimony"

  • "care"

  • "criminal maintenance"

  • "sustainment"

  • "sustenance"

  • "sustentation"

  • "upkeep"