adj

• (very occasionally postpositive) Positive, certain; unquestionable; not in doubt.
  "Yet if the register is not to be absolute evidence of proprietorship, it is clear that some investigation of title would still be necessary."
• (archaic) Certain; free from doubt or uncertainty (e.g. a person, opinion or prediction).
  "I am absolute ’twas very Cloten."
• (especially philosophy) Fundamental, ultimate, intrinsic; not relative; independent of references or relations to other things or standards.
  "the doctrine that absolute knowledge of things is possible; an absolute principle"
• (physics) Independent of arbitrary units of measurement, standards, or properties; not comparative or relative.
  "absolute velocity, absolute motion, absolute position"

noun

• (geometry) In a plane, the two imaginary circular points at infinity; in space of three dimensions, the imaginary circle at infinity.
• (philosophy, usually capitalized, usually preceded by "the") A realm which exists without reference to anything else; that which can be imagined purely by itself; absolute ego.
  "Withdrawn as a Buddha he sat, watching the alien world from his perch in the absolute."
• (philosophy, usually capitalized, usually preceded by "the") The whole of reality; the totality to which everything is reduced; the unity of spirit and nature; God.
• (chemistry) A concentrated natural flower oil, used for perfumes; an alcoholic extract of a concrete.
  "Complete concentration in a vacuum still at low temperature results in a concentrated flower oil, free from alcohol, the so-called absolute of enfleurage. The crude absolutes of enfleurage are usually of dark color and, because of their fat content, […]"

noun

• (philosophy) That which is totally unconditioned, unrestricted, pure, perfect, or complete; that which can be thought of without relation to others.