What does kept mean?
Kept is the past tense and past participle of the verb keep, and it is used to describe actions that have continued, been maintained, or been preserved. A speaker might say that someone kept a letter, kept a promise, kept a room tidy, or kept an object safe. The word can also describe the result of preventing someone or something from moving, escaping, or changing: a child may be kept at home, while a broken gate is kept closed by a temporary repair. In its adjectival use, kept can indicate that something is maintained or retained in a specified way, as in “a kept promise” or “a kept collection.” Its irregular formation is notable: rather than adding the ordinary -ed sound, the past form ends in /t/. The word is equally natural in British and American English and is common across formal, informal, and literary registers.
As a verb, kept means to retain, maintain, preserve, continue, prevent from moving or leaving, or fulfil an obligation.
"The librarian kept the archive open until the last researcher had left."
The precise meaning depends on the verb pattern and context; for example, “kept a promise” means fulfilled a promise, while “kept the door open” means prevented it from closing.
As an adjective, kept means maintained, preserved, retained, or deliberately maintained in a specified condition.
"The kept manuscript is displayed only under carefully controlled lighting."
This use is less frequent than the verbal use but is established, especially in phrases such as “a kept promise” and “a kept woman,” the latter being a dated expression.
Kept is the irregular past form of keep: it replaces the expected sound of the -ed ending with a compact /t/.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does kept come from?
Kept is the irregular past tense and past participle of keep, with the modern form developed through Middle English kepen from Old English cæpan. Its ultimate Germanic origin is debated, although the verb is clearly related to forms in other Germanic languages. The lack of a regular -ed ending reflects the historical sound changes that shaped the verb’s modern conjugation.
Related word forms
How kept is actually used
Kept is standard in formal and informal English. In some contexts it has a slightly literary or old-fashioned tone, especially when meaning maintained or continued, but it remains common in everyday speech. It can also function as an adjective before a noun, as in “a kept promise” or “a kept collection.”