Term: tread: the grooved surface of a pneumatic tire
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: miscue: a faulty shot in billiards; the cue tip slips off the cue ball
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: germanite: a rare reddish-grey mineral consisting of a copper iron germanium sulfide
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: sinciput: the front part of the head or skull (including the forehead)
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: slab: block consisting of a thick piece of something
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: photoelectricity: electricity generated by light or affected by light
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: rainbow lorikeet: a kind of lorikeet
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: rabbit ears: the long ears of a rabbit
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: spatter: the act of splashing a (liquid) substance on a surface
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: fifth: the musical interval between one note and another five notes away from it
Broader: surface: the outer boundary of an artifact or a material layer constituting or resembling such a boundary | Unrelated: maraca: a percussion instrument consisting of a hollow gourd containing pebbles or beans; often played in pairs