off (Adjective) — Not in operation or operational. ex. "the oven is off" ex. "the lights are off"
off (Adjective) — Below a satisfactory level. ex. "an off year for tennis" ex. "his performance was off"
off (Adjective) — (of events) no longer planned or scheduled. ex. "the wedding is definitely off"
off (Adjective) — In an unpalatable state. ex. "off milk"
off (Adjective) — Not performing or scheduled for duties. ex. "He's off every Tuesday"
off (Verb) — Kill intentionally and with premeditation.
off (Adverb) — From a particular thing, place or position. ex. "went off to school" ex. "they drove off"
off (Adverb) — At a distance in space or time. ex. "the boat was 5 miles off" ex. "the party is still 2 weeks off"
off (Adverb) — No longer on or in contact or attached. ex. "clean off the dirt" ex. "he shaved off his moustache"