Definitions
1.verbTo step or walk (on or over something); to trample."Don't tread on the lawn."
2.verbTo step or walk upon."Actors tread the boards."
3.verbTo beat or press with the feet."to tread a path; to tread land when too light; a well-trodden path"
4.verbTo go through or accomplish by walking, dancing, etc.
5.verbTo crush under the foot; to trample in contempt or hatred; to subdue.
6.verbTo copulate; said of (especially male) birds.
7.verb(of a male bird) To copulate with.