tread [ˈtrɛd]

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¹ tread verb

• to walk —often used figuratively
• to walk on or along (something) —often used figuratively
• to form (a path) by walking

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² tread noun

• the part of a tire that touches the ground : the pattern of raised lines on the surface of a tire
• a mark made by a tire when it rolls over the ground
• the part of a shoe or boot that touches the ground : the pattern of raised lines on the bottom of a shoe or boot