A line of poetry is a sequence of words that are written in a specific form and often have a certain meter or rhyme scheme. The term can refer to a variety of poetic forms, such as a stich (5 letters), haikurhymidyll (15 letters), lyricpsalmverse (15 letters), or sonnetodeballad (15 letters). Each of these forms has its own unique characteristics and structure, and all of them can be used to create a line of poetry.