Definitions

1. noun

the act of willfully causing something to fail or not function correctly, especially by tampering with or destroying equipment, or by secretly undermining the efforts or plans of others

“The company suspected sabotage from an employee who had recently been fired.”

2. verb

to secretly undermine or destroy something, especially by tampering with or damaging equipment

“The activists sabotaged the construction of the new highway by gluing themselves to the machinery.”