Cases of word usage

1) a poem or song of sorrow, especially for the dead (elegy)

2) (of) a long poem telling the story of the deeds of one or more great heroes, usually over a long period or time (epic)

3) an expression of grief; a song or poem expressing grief (lament)

4) a humorous or nonsense poem of five lines (limerick)

5) a lyric poem expressing noble or enthusiastic feelings (ode)

6) the instructory (part of a) poem or play (prologue)

7) a poem set to music and intended to be sung (song)

8) a kind of poem containing 14 lines each of 10 syllables, and with a formal pattern of rhymes (sonnet)

9) a group of rhymed lines forming a division in some forms of poem (stanza)