Is “Tranquilliser” a Scrabble word?
Yes
TRANQUILLISER
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 Tranquilliser
noun
1.That which tranquillizes or soothes.
2.A drug used to reduce anxiety or tension; a sedative.
Synonyms: trank, tranq, tranx