1. syllabic count = number of syllables
2. rhythm = the position of the accent or stress, generally on the penultimate (next to last) syllable of the verse
3. types of rhyme (necessary for a better precision of the rhythm): assonance, consonance, alternate, enclosed, couplet (clerihew type), monorhyme etc.
4. hemistich = a verse spit in half by a dash (-) signifying a break in speech
5. strophic pause, verbal pause
6. enjambment = a sentence that begins in a verse and continues in the following one(s)
7. types of verse = plain verse, acute verse, grave verse
8. stanza = each separate group of verses in a poem, that generally keep the same structure throughout the poem (in the classical acceptation of the word, a stanza comprised four lines, with steady rhyme and rhythm).
9. synalepha = the process of merging two syllables into one, usually in order to preserve the rhythm
10. syneresis = the proces of contracting two vowels into a diphtong, and, subsequently, merging two syllables into one, to preserve rhythm.
11. dieresis = the opposite of syneresis, it involves splitting a diphtong or vowel into two separate vowels, thus adding a syllable to the line (again, the purpose is to preserve the rhythm)
12. hiatus = the pause between two adjacent vowels going into different syllables
13. heptasyllabical verse (7) = a seven-syllable line
14. hendecasyllable verse (11) = an eleven-syllable line
15. octosyllabical verse (8) = an eight-syllable line
16. alexandrine verse or dodecasyllable verse (12) = a twelve-syllable line (allegedly named after a famous collection of romances in the 12th century, in which the main hero was Alexander the Great)