(intransitive) To move the foot in walking; to advance or recede by raising and moving one of the feet to another resting place, or by moving both feet in succession.

An advance or movement made from one foot to the other; a pace. / A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a rung of a ladder.

(colloquial) A stepchild. / (slang) A stepsibling.

plural of step-by-step

From one stage to the next in sequence. / Gradually and steadily.

In detail, describing each step precisely and in order.

(informal) A step-by-step guide.

(slang, archaic) To run away; scram.

(intransitive) To act as a replacement or substitute. / (intransitive) To get involved; to act

(also in plural) An item of clothing which one steps into to put on; specifically, women's panties.