Tread - definition of Tread from LearnEnglishIrregularVerbs.com

tread /tred/

1 to put your foot on or in something or to press something down with your foot while stepping or walking:
I kept treading on her toes when we were dancing.
Back then they used to tread grapes to make wine.
He found that the snow was trodden into such a solid icy mass, that an axe was necessary to cut it up in some places.
Not since the creation of the forest reserve had human foot trod this glorious wilderness.
2 to walk:
She treads quietly and cautiously.
He frowned, then trod heavily to a parlor chair and collapsed loosely in it, holding a whiskey bottle and a glass in his hands.
He should have trodden in the path traced out by the instructor.