Is “Speaker” a Scrabble word?
Yes
SPEAKER
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 Speaker
/ˈspiːkə/
noun
1.One who speaks.
2.Loudspeaker.
3.Speakerphone.
Synonyms: talker