Noun

1. The event of something ending
2. The act of stopping something
3. A brief stay in the course of a journey
4. The state of inactivity following an interruption
5. A spot where something halts or pauses
6. A consonant produced by stopping the flow of air at some point and suddenly releasing it
7. A punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
8. (music) a knob on an organ that is pulled to change the sound quality from the organ pipes
9. A mechanical device in a camera that controls size of aperture of the lens
10. A restraint that checks the motion of something
11. An obstruction in a pipe or tube

Verb

1. Come to a halt, stop moving
2. Put an end to a state or an activity
3. Stop from happening or developing
4. Interrupt a trip
5. Cause to stop
6. Prevent completion
7. Hold back, as of a danger or an enemy; check the expansion or influence of
8. Seize on its way
9. Have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
10. Render unsuitable for passage
11. Stop and wait, as if awaiting further instructions or developments