Is “Blather” a Scrabble word?
Yes
BLATHER
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 Blather
/blæðə(ɹ)/
noun
1.Nonsensical or foolish talk.
verb
1.To talk rapidly without making much sense.
2.To say (something foolish or nonsensical); to say (something) in a foolish or overly verbose way.