- positivism, logical positivism - the form of empiricism that bases all knowledge on perceptual experience (not on intuition or revelation)
 --1 is a kind of empiricism, empiricist philosophy, sensationalism
 --1 has particulars: Comtism
- positivism, positivity - a quality or state characterized by certainty or acceptance or affirmation
 --2 is a kind of quality
 --2 has particulars: positiveness