Stanzas are groupings of one or more lines that are separated from each other by space or numbers. The number of lines in each grouping can be used to categorize poetry.
| One-line | 1 line of verse | |
| Couplet Distich | 2 lines of verse | |
| Triplet Tercet | 3 lines of verse | |
| Quatrain | 4 lines of verse | |
| Quintet Cinquain | 5 lines of verse | |
| Sestet Sextet Sextain | 6 lines of verse | |
| Septet | 7 lines of verse | |
| Octave | 8 lines of verse | |
| Nine-line | 9 lines of verse | |
| Ten-line | 10 lines of verse | |
| Eleven-line | 11 lines of verse | |
| Twelve-line | 12 lines of verse | |
| Quatorzain | 14 lines of verse | loose structure |
| Sonnet | 14 lines of verse | strict structure |