A brake is a device for slowing a moving vehicle. To brake is the verb. (Note: It's quite rare, but brake is also the word for a four-wheeled horse carriage and also a machine for crushing hemp.)
Break most commonly means a period of rest or an interruption of continuity. (More below)
Brake and Break
The words break and brake sound identical, but their meanings are quite different.
Brake
The word brake has several meanings:
A device for slowing a moving vehicle (typically by adding friction to the wheels).
You do know that the brake is the pedal in the middle, don't you?
(This is like the meaning below, i.e., an interruption of continuity.)
A period of rest or an interruption of continuity.
I need to take a break.
(a period of rest)
There is a break in the pattern.
(an interruption of continuity)
In this meaning, break is a noun. It is like interval, pause, or gap.
To infringe or disobey.
Please do not break my trust in you.
It is much easier to break the rules when one's surrounded by strangers. One does not know any of them, so one cannot really care for their opinion. (Monica Fairview)
Men keep agreements when it is to the advantage of neither to break them. (Solon, 638 BC-559 BC)
Some vehicles slow down by jamming a spike in the ground. The spike rakes the ground causing vehicle to decelerate. Let the rake in brake remind you that brake is used for slowing a vehicle.