1.the event of something ending;

it came to a stop at the bottom of the hill

2.the act of stopping something;

the third baseman made some remarkable stops

3.a brief stay in the course of a journey;

they made a stopover to visit their friends

4.the state of inactivity following an interruption;

the negotiations were in arrest

5.a spot where something halts or pauses;

his next stop is Atlanta

6.a consonant produced by stopping the flow of air at some point and suddenly releasing it;

his stop consonants are too aspirated

7.a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations;

in England they call a period a stop

8.(music) a knob on an organ that is pulled to change the sound quality from the organ pipes;

the organist pulled out all the stops

9.a mechanical device in a camera that controls size of aperture of the lens;

the new cameras adjust the diaphragm automatically

10. a restraint that checks the motion of something;

he used a book as a stop to hold the door open

11. an obstruction in a pipe or tube;

we had to call a plumber to clear out the blockage in the drainpipe

1.come to a halt, stop moving;

the car stopped

2.put an end to a state or an activity;

Quit teasing your little brother

3.stop from happening or developing;

Block his election

4.interrupt a trip;

we stopped at Aunt Mary's house

5.cause to stop;

stop a car

6.prevent completion;

stop the project

7.hold back, as of a danger or an enemy; check the expansion or influence of;

Arrest the downward trend

8.seize on its way;

The fighter plane was ordered to intercept an aircraft that had entered the country's airspace

9.have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical;

the bronchioles terminate in a capillary bed

10. render unsuitable for passage;

block the way

11. stop and wait, as if awaiting further instructions or developments;

Hold on a moment!