What does maintain mean?
Maintain means to keep something in its present condition, preserve it from deterioration, or continue it at an established level. The verb is used with objects such as standards, order, records, buildings, equipment, and personal health, making it especially useful when describing responsible or continuous care. For example, an organization may maintain good relations with its members, while a person may maintain a balanced diet or a vehicle in good repair. In legal and formal contexts, maintain can mean to assert a claim firmly, as in “the defendant maintained his innocence.” Its meaning can also extend to financial support: an individual or institution may maintain a household, a program, or a historical site. Although maintain often overlaps with keep and preserve, it generally suggests deliberate, sustained attention to condition, level, or continuity rather than a casual decision to retain something.
To keep something in an existing state, continue it at a particular level, or preserve it from change. It can also mean to provide support, keep something in good condition, or assert a position firmly.
"The programme aims to maintain access to clean water throughout the region."
The verb is transitive and is common in British and American English.
The act or process of keeping something in existence, in good condition, or at a required level.
"The building is expensive to maintain."
The noun is comparatively uncommon in everyday use; maintenance is normally preferred.
The plural is rare because the noun is rarely used.
"The city has responsibility for the maintains of several public monuments."
Maintain comes from a Latin phrase meaning “to hold with the hand,” a fitting reminder that keeping something in place is an ancient human concern.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does maintain come from?
Maintain entered English through Old French maintenir, which continued the tradition of the Latin phrase manu tenere, “to hold with the hand.” The word developed over time from the literal idea of holding or keeping something to its modern senses of preserving, supporting, and upholding. Its ultimate Latin element, tenere, “to hold,” also lies behind cognates and related formations such as tenant, tenement, detention, and content.
Related word forms
How maintain is actually used
The word is formal but widely used in both British and American English. It often conveys continued care, preservation, or compliance rather than simply leaving something unchanged.
Easily confused with maintain
To maintain something is to preserve or continue it, whereas to contain it is to hold or enclose it within a particular space or limit.
Maintain often means to keep something in good condition or at a required level, while retain more commonly means to keep possession of something already held.