Alliteration- The repetition of initial sounds in adjacent words or syllables.
Analogy- Inference that if two or more things agree in some respects they will probably tween things otherwise unlike.
Assonance- Repetition of vowels especially an alternative to rhyme in verse.
Consonance- Repetition of consonants especially as an alternative to rhyme in verse.
Ballad- A simple narrative poem of folk origin, composed in short stanzas and adapted for singing. 
Blank Verse- Unrhymed verse, especially the unrhymed iambic pentameter most frequently used in English dramatic, epic, and reflective verse.
Figurative language- Speech or writing that departs from literal meaning in order to achieve a special effect or meaning, speech or writing employing figures of speech.
Free Verse- Unrhymed verse without a metrical pattern 
Haiku-A major form of Japanese verse, written in 17 syllables divided into 3 lines of 5, 7, and 5 syllables, and employing highly evocative allusions and comparisons, often on the subject of nature or one of the seasons. 
Imagery- The formation of mental images,  figures, or likenesses of things, or of such images.  
Lyric Poem- A short poem of songlike quality.
Narrative Poem- A poem that tells a story and has a plot.
Ode-  A lyric poem of some length, usually of a serious or meditative nature and having an elevated style and formal stanzaic structure.
Rhyme- Identity in sound of some part, especially the end, of words or lines of verse.
Rhythm- Movement or procedure with uniform or patterned recurrence of a beat, accent, or the like. 
Shakespearean Sonnet- The sonnet form used by Shakespeare, composed of three quatrains and a terminal couplet in iambic pentameter with the rhyme pattern abab cdcd efef gg.
Petrarchan Sonnet-A sonnet form associated with the poet Petrarch, having an octave rhyming a b b a a b b a and a sestet rhyming either c d e c d e or c d c d c d Also called Italian sonnet.