(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.

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

To drive fast; to step on the accelerator. / (idiomatic) To act quickly.

simple past tense and past participle of step

Provided with a step or steps; having a series of offsets or parts resembling the steps of stairs.

present participle of step

The act of taking a step.

Of a number of people walking, or especially marching, synchronously, so that that footfalls occur at the same time.

(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.