"treads" in the noun sense
1. pace, stride, tread
a step in walking or running
the grooved surface of a pneumatic tire
the part (as of a wheel or shoe) that makes contact with the ground
structural member consisting of the horizontal part of a stair or step
"treads" in the verb sense
1. step, tread
put down or press the foot, place the foot
"For fools rush in where angels fear to tread"
"step on the brake"
2. tread, trample
tread or stomp heavily or roughly
"The soldiers trampled across the fields"
crush as if by treading on
"tread grapes to make wine"
brace (an archer's bow) by pressing the foot against the center
apply (the tread) to a tire
"male birds tread the females"
Source: WordNet® (An amazing lexical database of English)
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