Maintain
Maintain (verb) /meɪnˈteɪn/
to continue an action, course, situation, etc. – make something continue – keep on – uphold – give funds – look after – support financially – declare – affirm – insist:
In a happy marriage, the spouses should try to maintain a good relationship. In his lecture, professor Richardson maintained that the educational standards of their university should be slightly modified.
Antonyms: destroy, neglect, deny
Noun: maintainer
Noun: maintainability
Adjective: maintainable
