Is “Hairsbreadth” a Scrabble word?
Yes
HAIRSBREADTH
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 Hairsbreadth
/ˈhɛəɹzbɹɛdθ/
noun
1.A very short distance or a very small amount (as is the width of a hair).