Is “Buttercup” a Scrabble word?
Yes
BUTTERCUP
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 Buttercup
/ˈbʌt.ə.kʌp/
noun
1.Any of many herbs, of the genus Ranunculus, having yellow flowers; the crowfoot.
2.Any flower of the genus Narcissus; a daffodil.
3.Affectionate or ironic term of address.
Synonyms: crowfoot, ranunculus