Real Dictionary

stop
a unit that consists of three adjacent bases on a DNA molecule and that determines the position of a specific amino acid in a protein molecule during protein synthesis [...]
an arrest of movement or progress [...]
singular noun: If something that is moving comes to a stop or is brought to a stop, it slows down and no longer moves.
verb: If an activity or process stops, it is no longer happening.
verb: If someone does not stop to think or to explain, they continue with what they are doing without taking any time to think about or explain it.
verb: If something such as machine stops or is stopped, it is no longer moving or working.
verb: If you have been doing something and then you stop doing it, you no longer do it.
verb: If you say that a quality or state stops somewhere, you mean that it exists or is true up to that point, but no further.
verb: If you stop something happening, you prevent it from happening or prevent it from continuing.
verb: When a moving person or vehicle stops or is stopped, they no longer move and they remain in the same place.