General:
* Verse: This is the most common and general term.
* Line: This is the most literal and straightforward option.
More specific:
* Couplet: Two lines that rhyme.
* Triplet: Three lines that rhyme.
* Quatrain: Four lines that rhyme.
* Sestet: Six lines that rhyme.
* Octave: Eight lines that rhyme.
* Stanza: A group of lines in a poem, often with a specific rhyme scheme or structure.
* Hemistich: Half a line of poetry.
More creative:
* Phrase: Emphasizes the rhythmic and musical aspect of the line.
* Thought: Highlights the conceptual content of the line.
* Image: Focuses on the visual or sensory experience evoked by the line.
The best word to use will depend on your specific needs and the overall tone of your writing.