Definition of maintain
(verb)
cause to
continue in a
certain state, position, or activity; e.g., `keep clean'; "hold in place"; "She
always held herself as a lady"; "The students
keep me on my toes"
have and exercise; "wield
power and authority"
maintain for use and service; "I
keep a car in the countryside"; "She keeps an
apartment in Paris for her
shopping trips"
maintain by
writing regular records; "keep a diary"; "maintain a record"; "keep notes"