Is “Couplet” a Scrabble word?
Yes
COUPLET
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Couplet
noun
1.A pair of lines with rhyming end words.
2.A pair of one-way streets which carry opposing directions of traffic through gridded urban areas.
“5th Street is one-way west only and 6th Street is one-way east only. Together, they form a couplet in Downtown Los Angeles.”
3.A pair of two mutually exclusive choices in a dichotomous key.
Synonyms: one-way pair