Is “Plenary” a Scrabble word?
Yes
PLENARY
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 Plenary
/ˈpliːnəɹi/
noun
1.Plenary session
“After lunch, we will all be in the main auditorium listening to the plenary.”
2.(pedagogy) Part of a lesson, usually at or towards the end, designed to review or evaluate the learning that has taken place.
adjective
1.Fully attended; for everyone's attendance.
2.Complete; full; entire; absolute.