terminate

verb

1. bring to an end or halt"She ended their friendship when she found out that he had once been convicted of a crime"
2. have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical"the bronchioles terminate in a capillary bed"
3. be the end of; be the last or concluding part of"This sad scene ended the movie"
4. terminate the employment of; discharge from an office or position"The boss fired his secretary today"