E₁X₈P₃E₁R₁T₁N₁E₁S₁S₁

19 points

EXPERTNESS is validvalid

the quality of being expert [n EXPERTNESSES]

127,832 of 196,601 in NWL2023·also valid in CSW24

a possession of specific skills, also EXPERTISM [n -ES]

84,008 of 280,887 in CSW24·also valid in NWL2023