1. [n]  a strong hard building material composed of sand and gravel and cement and water
2. [adj]  capable of being perceived by the senses; not abstract or imaginary; "concrete objects such as trees"
3. [adj]  formed by the coalescence of particles
4. [v]  form into a solid mass; coalesce
5. [v]  cover with cement; "concrete the walls"

Concrete
All Larry Munro wanted was a tank of gas. What he got was a gun put to his head. Now he`s being forced to play chauffeur to a pyromaniac looking to burn L.A. to the ground! Can Concrete race fast enough to stop the bullet aimed at his best friend`s head? Full-color throughout. Graphic novel format.

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1. \Con"crete\ (? or ?), a. [L. concretus, p. p. of
   concrescere to grow together; con- + crescere to grow; cf. F.
   concret. See {Crescent}.]
   1. United in growth; hence, formed by coalition of separate
      particles into one mass; united in a solid form.
            The first concrete state, or consistent surface, of
            the chaos must be of the same figure as the last
            liquid state.                         --Bp. Burnet.
   2. (Logic)
      (a) Standing for an object as it exists in nature,
          invested with all its qualities, as distinguished from
          standing for an attribute of an object; -- opposed to
          {abstract}. Hence:
      (b) Applied to a specific object; special; particular; --
          opposed to {general}. See {Abstract}, 3.
                Concrete is opposed to abstract. The names of
                individuals are concrete, those of classes
                abstract.                         --J. S. Mill.
                Concrete terms, while they express the quality,
                do also express, or imply, or refer to, some
                subject to which it belongs.      --I. Watts.
   {Concrete number}, a number associated with, or applied to, a
      particular object, as three men, five days, etc., as
      distinguished from an abstract number, or one used without
      reference to a particular object.
   {Concrete quantity}, a physical object or a collection of
      such objects. --Davies & Peck.
   {Concrete science}, a physical science, one having as its
      subject of knowledge concrete things instead of abstract
      laws.
   {Concrete sound or movement of the voice}, one which slides
      continuously up or down, as distinguished from a
      {discrete} movement, in which the voice leaps at once from
      one line of pitch to another. --Rush.
   

2. \Con"crete\, n.
   1. A compound or mass formed by concretion, spontaneous
      union, or coalescence of separate particles of matter in
      one body.
            To divide all concretes, minerals and others, into
            the same number of distinct substances. --Boyle.
   2. A mixture of gravel, pebbles, or broken stone with cement
      or with tar, etc., used for sidewalks, roadways,
      foundations, etc., and esp. for submarine structures.
   3. (Logic) A term designating both a quality and the subject
      in which it exists; a concrete term.
            The concretes ``father'' and ``son'' have, or might
            have, the abstracts ``paternity'' and ``filiety''.
                                                  --J. S. Mill.
   4. (Sugar Making) Sugar boiled down from cane juice to a
      solid mass.
   

3. \Con*crete"\, v. i. [imp. & p. p. {Concreted}; p. pr &
   vb. n. {Concreting}.]
   To unite or coalesce, as separate particles, into a mass or
   solid body.
   Note: Applied to some substances, it is equivalent to
         indurate; as, metallic matter concretes into a hard
         body; applied to others, it is equivalent to congeal,
         thicken, inspissate, coagulate, as in the concretion of
         blood. ``The blood of some who died of the plague could
         not be made to concrete.'' --Arbuthnot.
   

4. \Con*crete"\, v. t.
   1. To form into a mass, as by the cohesion or coalescence of
      separate particles.
            There are in our inferior world divers bodies that
            are concreted out of others.          --Sir M. Hale.
   2. To cover with, or form of, concrete, as a pavement.