1) Abandon 2) Breakoff 3) Cease 4) Disrupt 5) Drop 6) End 7) Expire 8) Fizzle 9) Halt 10) Interrupt 11) Quit 12) Stop 1) Cease 2) Come to or be at an end 3) French word used in English 4) Give up 5) Lay off 6) Prevent completion 7) Quit 8) Stop 9) Stop doing it 
• (v. i.) To lose continuity or cohesion of parts; to be disrupted or broken off. • (v. t.) To interrupt the continuance of; to intermit, as a practice or habit; to put an end to; to cause to cease; to cease using, to stop; to leave off. • (v. i.) To be separated or severed; to part.
Dis`con·tin'ue transitive verb [ imperfect & past participle Discontinued ; present participle & verbal noun Discontinuing .] [ Confer French discontinuer .] To interrupt the continuance of; to intermit, as a practice or habit; to ...
[v] - come or be at an end 2. [v] - put an end to a state or an activity
stop verb put an end to a state or an activity; `Quit teasing your little brother`