Open fire and Set off

Open fire

Open fire verb - Start firing a weapon.

Set off and open fire are semantically related in discharge a projectile topic. In some cases you can use "Set off" instead a verb phrase "Open fire".

Set off

Set off verb - To cause to function.

Open fire and set off are semantically related in discharge a projectile topic. Sometimes you can use "Open fire" instead a verb "Set off".

Both terms in one sentence

  • Let's You and Him Fight He has the bank president set off the silent alarm to call the police to the bank, and since Henderson can't allow that evidence to reach CTU (which it undoubtedly would if Bauer was arrested), his men open fire on the policemen, allowing Jack to escape in the confusion.
Cite this Source
Set off and Open fire. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/open_fire/set_off
Open fire & Set off. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/open_fire/set_off>.
Set off or Open fire. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/open_fire/set_off.
Google Ngram Viewer shows how "open fire" and "set off" have occurred on timeline