couplet

US /ˈkʌp.lət/
UK /ˈkʌp.lət/
"couplet" picture
1.

two lines of verse, usually in the same meter and joined by rhyme, forming a unit

:
The poem ended with a rhyming couplet.
Shakespeare often used couplets to conclude scenes.
2.

a pair of something, especially people

:
A happy couplet of newlyweds walked down the aisle.
The old man and his dog made a charming couplet.