Is “Hobnail” a Scrabble word?
Yes
HOBNAIL
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 Hobnail
noun
1.A short nail with a thick head, typically used in boot soles.
2.A clownish person; a rustic.
verb
1.To fit with hobnails.
“a machine for the hobnailing of shoes”
2.To tread down roughly, as with hobnailed shoes.