To step or walk (on or over something); to trample.
Don't tread on the lawn.
To step or walk upon.
Actors tread the boards.
To beat or press with the feet.
to tread a path; to tread land when too light; a well-trodden path
To go through or accomplish by walking, dancing, etc.
To crush under the foot; to trample in contempt or hatred; to subdue.
To copulate; said of (especially male) birds.
(of a male bird) To copulate with.
The act of one who treads.