What does POSITIVE mean?

adjective

1. characterized by or displaying affirmation or acceptance or certainty etc.“a positive attitude”
2. persuaded of; very sure“were convinced that it would be to their advantage to join”
3. involving advantage or good“a plus (or positive) factor”
4. indicating existence or presence of a suspected condition or pathogen“a positive pregnancy test”
5. formally laid down or imposed“positive laws”
6. impossible to deny or disprove“incontrovertible proof of the defendant's innocence”
7. of or relating to positivism“positivist thinkers”
8. reckoned, situated or tending in the direction which naturally or arbitrarily is taken to indicate increase or progress or onward motion“positive increase in graduating students”