Is “Manpack” a Scrabble word?
Yes
MANPACK
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 Manpack
/ˈmænˌpæk/
noun
1.(usually attributive) An object meant to be carried by a single person.