TWO WORDS a few letters of the alphabet SO & OFF have a variety of meanings.
SO The tone used suggests various interpretations. an impudent answer or a challenge to
Perhaps a condition – The bus travels so slowly.
A reason – it rained so the match was cancelled
Behaviour – I was so annoyed I spoke my mind.
OFF may infer away from. I was off work last week. I am on a diet so am off sweets.
Not edible/fresh – The food in the fridge was off.
Chance–on the off chance of his coming home early.
Target – The shot was well off the target.