Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [1058]
1positive adjective 1 : expressed definitely 2 : fully assured : CONFIDENT, CERTAIN 3 : of, relating to, or constituting the degree of grammatical comparison that denotes no increase in quality, quantity, or relation 4 : not fictitious : REAL 5 : active and effective in function <~ leadership> 6 : having the light and shade as existing in the original subject 7 : numerically greater than zero 8 : being, relating to, or charged with electricity of which the proton is the elementary unit 9 : marked by or indicating acceptance, approval, or affirmation — pos·i·tive·ly adverb Synonyms [2] assured, certain, clear, cocksure, confident, doubtless, sanguine, sure—more at CERTAIN [9] appreciative, complimentary, favorable, friendly, good—more at FAVORABLE 2positive noun 1 : the positive degree or a positive form in a language 2 : a positive photograph pos·i·tive·ness noun : the quality or state of being positive Synonyms assurance, certainty, certitude, confidence, conviction, sureness—more at CONFIDENCE pos·i·tron noun : a positively charged particle having the same mass and magnitude of charge as the electron po·so·le or po·zo·le noun : a thick Mexican soup made with pork, hominy, garlic, and chili poss abbreviation possessive pos·se noun [ORIGIN: ML posse comitatus, lit., power or authority of the county] : a body of persons organized to assist a sheriff in an emergency pos·sess verb 1 : to have as property : OWN 2 : to have as an attribute, knowledge, or skill 3 : to enter into and control firmly <~ed by a devil> Synonyms command, enjoy, have, hold, occupy, own, retain—more at HAVE pos·ses·sion noun 1 : control or occupancy of property without regard to ownership 2 : OWNERSHIP 3 : something owned : PROPERTY 4 : domination by something (as an evil spirit, a passion, or an idea) 5 : SELF-CONTROL Synonyms [1] control, hands, keeping; also ownership, proprietorship; authority, command, dominion, mastery, power; enjoyment, repossession, retention; claiming, collaring, commandeering, confiscation, procurement possessions [3] belongings, chattels, effects, holdings, paraphernalia, property, things; also treasures, valuables; junk, stuff, appointments, fixtures, furnishings; property, tangibles; collateral pos·ses·sive adjective 1 : of, relating to, or constituting a grammatical case denoting ownership