Line (poetry) in the context of "Prose"

Poetry (from the Greek word poiesis, "making") is a form of literary art that uses aesthetic and often rhythmic qualities of language to evoke meanings in addition to, or in place of, literal or surface-level meanings. Any particular instance of poetry is called a poem and is written by a poet. Poets use a variety of techniques called poetic devices, such as assonance, alliteration, consonance, euphony and cacophony, onomatopoeia, rhythm (via metre), rhyme schemes (patterns in the type and placement of a phoneme group) and sound symbolism, to produce musical or other artistic effects. They also frequently organize these devices into poetic structures, which may be strict or loose, conventional or invented by the poet. Poetic structures vary dramatically by language and cultural convention, but they often rely on rhythmic metre: patterns of syllable stress or syllable (or mora) weight. They may also use repeating patterns of phonemes, phoneme groups, tones, words, or entire phrases. Poetic structures may even be semantic (e.g. the volta required in a Petrachan sonnet).

Most written poems are formatted in verse: a series or stack of lines on a page, which follow the poetic structure. For this reason, verse has also become a synonym (a metonym) for poetry. Some poetry types are unique to particular cultures and genres and respond to characteristics of the language in which the poet writes. Readers accustomed to identifying poetry with Dante, Goethe, Mickiewicz, or Rumi may think of it as written in lines based on rhyme and regular meter. There are, however, traditions, such as Biblical poetry and alliterative verse, that use other means to create rhythm and euphony. Other traditions, such as Somali poetry, rely on complex systems of alliteration and metre independent of writing and have been described as structurally comparable to ancient Greek and medieval European oral verse. Much modern poetry reflects a critique of poetic tradition, testing the principle of euphony itself or altogether forgoing rhyme or set rhythm. In first-person poems, the lyrics are spoken by an "I", a character who may be termed the speaker, distinct from the poet (the author). Thus if, for example, a poem asserts, "I killed my enemy in Reno", it is the speaker, not the poet, who is the killer (unless this "confession" is a form of metaphor which needs to be considered in closer context – via close reading).

In poetry, metre (Commonwealth spelling) or meter (American spelling; see spelling differences) is the basic rhythmic structure of a verse or lines in verse. Many traditional verse forms prescribe a specific verse metre, or a certain set of metres alternating in a particular order. The study and the actual use of metres and forms of versification are both known as prosody. (Within linguistics, "prosody" is used in a more general sense that includes not only poetic metre but also the rhythmic aspects of prose, whether formal or informal, that vary from language to language, and sometimes between poetic traditions.)

A verse is formally a single metrical line in a poetic composition. However, verse has come to represent any grouping of lines in a poetic composition, with groupings traditionally having been referred to as stanzas.

Verse in the uncountable (mass noun) sense refers to poetry in contrast to prose. Where the common unit of verse is based on meter or rhyme, the common unit of prose is purely grammatical, such as a sentence or paragraph.

A rhyme is a repetition of similar sounds (usually the exact same phonemes) in the final stressed syllables and any following syllables of two or more words. Most often, this kind of rhyming (perfect rhyming) is consciously used for a musical or aesthetic effect in the final position of lines within poems or songs. More broadly, a rhyme may also variously refer to other types of similar sounds near the ends of two or more words. Furthermore, the word rhyme has come to be sometimes used as a shorthand term for any brief poem, such as a nursery rhyme or Balliol rhyme.

A quatrain is a type of stanza, or a complete poem, consisting of four lines.

Existing in a variety of forms, the quatrain appears in poems from the poetic traditions of various ancient civilizations including Persia, Ancient India, Ancient Greece, Ancient Rome, and China, and continues into the 21st century, where it is seen in works published in many languages.