This board has a bad warp.
The arch of the bridge is beautiful.
curve of a sword
Specifically the curvature along the blade of a Japanese sword, an important aesthetic and functional feature.
The curve of a Japanese sword is one of the factors that determine the beauty of the blade.
I just don't get along with him.
Boards can warp when they dry out.
arched bridge
strutting; sticking out the chest; arched posture
backwards body drop
outward-curving bowl rim; bowl lip curved outwards
reverse backwards body drop
back arch like a shrimp · kabuki pose: overwhelmed, hands out, back arched
underarm forward body drop
wooden plane with a convex base curved in the cutting direction