Err
Part of speech: verb
Definition: To make a mistake. To sin. to stray.
Example sentence: To err is human. To blame someone else is politics.
Slip
Part of speech: verb
Definition: To lose one's traction on a slippery surface; to slide due to a lack of friction.To err.To pass (a note, money, etc.) often covertlyTo move quickly and often secretivelyTo worsen.To release a bird of prey to go after a quarry.
Part of speech: noun
Definition: An act or instance of slipping.A women's undergarment worn under a skirt or dress; a shift.A small piece of paper.A mistake or error (slip of the tongue.)A berth; a space for a ship to moor.A difference between the theoretical distance traveled per revolution of the propeller and the actual advance of the vessel.A one-time return to previous maladaptive behaviour after cure.In ceramics, a thin, slippery mix of clay and water.Any of several fielding positions to the off side of the wicket keeper, designed to catch the ball after being deflected from the bat; a fielder in that position (See first slip, second slip, third slip, fourth slip and fifth slip.)A number between 0 and 1 that is the difference between the angular speed of a rotating magnetic field and the angular speed of its rotor, divided by the angular speed of the magnetic field.
Example sentence: When you slip on a banana peel, people laugh at you; but when you tell people you slipped on a banana peel, it's your laugh. So you become the hero rather than the victim of the joke.