Is “Whom” a Scrabble word?
Yes
WHOM
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 Whom
/huːm/
pronoun
1.(interrogative) What person or people; which person or people.
2.(relative) Used to refer to a previously mentioned person or people.
“He's a person with whom I work. (defining)”
3.(fused relative, archaic outside set patterns) The person(s) whom; whomever.
“To whom it may concern, all business of John Smith Ltd. has now been transferred to Floggitt & Runne.”