I'm just guessing that maybe you are referring to a male name Kaz, or Kazu, which is normally an abbreviated version (nickname) of longer names such as Kazuo, Kazuhiro, Kazuhiko, Kazutoshi, etc., etc., there are many male names that start with kazu-.
Definition of Quatrain. A quatrain is a verse with four lines, or even a full poem containing four lines, having an independent and separate theme. Often one line consists of alternating rhyme, existing in a variety of forms.
Define couplet: two successive lines of verse forming a unit marked usually by rhythmic correspondence, rhyme, or theâ¦ â couplet in a sentence two successive lines of verse forming a unit marked usually by rhythmic correspondence, rhyme, or the inclusion of a self-contained utterance :â¦