You cannot replace one with the other, which makes it essential to clearly understand the definition and correct use of each. Read the explanations below to sort things out right now!
Pedal vs. Peddle
Besides the fact that they are spelled differently despite their similar pronunciation, their syntactical function is the next major difference between "pedal" and "peddle". "Pedal" is always used as noun, only defining an object, whereas "peddle" is always used as verb, only defining an action. And, of course, the significations they carry are also perfectly distinct. Learn more about each word's meaning below.
When do we use "pedal"?
The noun "pedal" defines that part/component of a machine that determines the machine to operate or to move once the foot presses it. It can be the bike pedal, or the brake pedal from the car.
Example: The brake pedal worked great - otherwise, an accident would have been imminent. - a "pedal" is the component of a machine that is pressed with the foot to operate that machine.
When do we use "peddle"?
The verb "peddle" refers to the action of selling things of very low, bad quality. It is used especially when referring to the action of selling drugs.
Example: If the police learns that you peddle drugs, they will arrest you immediately. - "peddle" carries the significance of selling things that are illegal, bad, or low-quality.
It is extremely simple to distinguish "pedal" from "peddle" if you think about their syntactical functions. Remember "pedal" is always a noun, referring to a machine component, whether it's car pedal or bike pedal; while "peddle" is always used as a verb only, defining the action of selling drugs or bad-quality things. Not that confusing anymore, right?