INTERDIFFUSE
19
Scrabble
21
WWF
I(1) N(1) T(1) E(1) R(1) D(2) I(1) F(4) F(4) U(1) S(1) E(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Hooks
Back hooks: INTERDIFFUSE-D INTERDIFFUSE-S