(military, chiefly historical) A step or platform dug into the front side of a military trench - allowing soldiers to stand on it in order to fire over the parapet.

(music, US) An interval of which there are seven in a fifth or twelve in an octave, consisting of two tones whose frequency ratio is about 1.059 or 18/17.

A sudden, discontinuous change.

A misstep; a stumble. / (figuratively) An erroneous action or decision.

(transitive, idiomatic) To increase, augment, or advance, especially by one or more steps.

(intransitive, idiomatic) To assume or take responsibility.

a form of aerobics involving repeated stepping up onto, and down from a block or platform

(military, typically derogatory) A style of march in which the legs advance in turn without bending the knee, whether as a low quick march or a rigorous high slow march for ceremonial occasions; the various drills associated with these marches.

(military, typically derogatory) To march with a goose-step.

(military) A step in marching, by which a soldier, while advancing, gradually takes ground to the right or left at an angle of about 25 degrees.