off

Off is a common English word used as an adverb, preposition, and adjective. It typically signals removal, disconnection, or cessation, as in turn off the lights, take off your shoes, or the power is off. It can also indicate distance or deviation from a norm, as in off topic or off schedule. In some phrases, it forms compound terms such as off-brand or off-duty. The word appears in many proper names and titles across media and culture.

In popular culture, Off is the title of a 2008 indie video game by Mortis Ghost, noted for its surreal setting and narrative.

OFF! is a brand of insect repellent produced by SC Johnson. The product line includes aerosols, liquids, and wipes that use active ingredients such as DEET and, in some formulations, alternatives like picaridin. OFF! products are marketed to prevent mosquito and tick bites, with usage guidelines emphasizing label directions, skin and clothing application, and precautions for sensitive individuals.

OFF! is also the name of an American hardcore punk band formed in 2009. The band is known for its concise, aggressive style and for featuring established members from other punk and hardcore acts. As a title, name, or brand, Off appears in various contexts beyond these examples, reflecting its broad utility in language and culture.