Definition of "Off" :

verb: kill intentionally and with premeditation

adjective: not performing or scheduled for duties

"He's off every Tuesday."

adjective: not in operation or operational

"The oven is off."

adjective: (of events) no longer planned or scheduled

"The wedding is definitely off."

adjective: below a satisfactory level

"An off year for tennis."

adjective: in an unpalatable state

adverb: no longer on or in contact or attached

"Clean off the dirt."

adverb: from a particular thing or place or position (forth' is obsolete)

"Went off to school."

adverb: at a distance in space or time

"The boat was 5 miles off (or away)."