In poetry, a fourteener is a line consisting of 14 syllables, which are usually made of seven iambic feet, for which the style is also called iambic heptameter. It is most commonly found in English poetry produced in the 16th and 17th centuries. Fourteeners often appear as rhymed couplets, in which case they may be seen as ballad stanza or common metre hymn quatrains in two rather than four lines.
The term may also be used as a synonym for quatorzain, a 14-line poem, such as a sonnet.