The Collaborative International Dictionary of English v.0.48:

Grow \Grow\ (gr[=o]), v. i. [imp. Grew (gr[udd]); p. p. Grown
    (gr[=o]n); p. pr. & vb. n. {Growing.] [AS. gr[=o]wan; akin
   to D. groeijen, Icel. gr[=o]a, Dan. groe, Sw. gro. Cf.
   Green, Grass.]
   1. To increase in size by a natural and organic process; to
      increase in bulk by the gradual assimilation of new matter
      into the living organism; -- said of animals and
      vegetables and their organs.
      [1913 Webster]

   2. To increase in any way; to become larger and stronger; to
      be augmented; to advance; to extend; to wax; to accrue.
      [1913 Webster]

            Winter began to grow fast on.         --Knolles.
      [1913 Webster]

            Even just the sum that I do owe to you
            Is growing to me by Antipholus.       --Shak.
      [1913 Webster]

   3. To spring up and come to maturity in a natural way; to be
      produced by vegetation; to thrive; to flourish; as, rice
      grows in warm countries.
      [1913 Webster]

            Where law faileth, error groweth.     --Gower.
      [1913 Webster]

   4. To pass from one state to another; to result as an effect
      from a cause; to become; as, to grow pale.
      [1913 Webster]

            For his mind
            Had grown Suspicion's sanctuary.      --Byron.
      [1913 Webster]

   5. To become attached or fixed; to adhere.
      [1913 Webster]

            Our knees shall kneel till to the ground they grow.
                                                  --Shak.
      [1913 Webster]

   Growing cell, or Growing slide, a device for preserving
      alive a minute object in water continually renewed, in a
      manner to permit its growth to be watched under the
      microscope.

   Grown over, covered with a growth.

   To grow out of, to issue from, as plants from the soil, or
      as a branch from the main stem; to result from.
      [1913 Webster]

            These wars have grown out of commercial
            considerations.                       --A. Hamilton.

   To grow up, to arrive at full stature or maturity; as,
      grown up children.

   To grow together, to close and adhere; to become united by
      growth, as flesh or the bark of a tree severed. --Howells.

   Syn: To become; increase; enlarge; augment; improve; expand;
        extend.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

growing \growing\ n.
   the sequence of events involved in the development of an
   organism.

   Syn: growth, maturation, development, ontogeny, ontogenesis.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

growing \growing\ adj.
   1. increasing in intensity of some quality. [prenominal]

   Syn: increasing(prenominal), incremental.
        [WordNet 1.5]

   2. increasing in size or amount; as, her growing popularity.
      [WordNet 1.5]

   3. increasing in size and maturity; -- of living things
      normally healthy and not fully matured.

   Syn: flourishing, thriving.
        [WordNet 1.5]

   4. p. pr. of grow (definition 3); as, growing plants.
      [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

growing
    adj 1: relating to or suitable for growth; "the growing season
           for corn"; "good growing weather"
    n 1: (biology) the process of an individual organism growing
         organically; a purely biological unfolding of events
         involved in an organism changing gradually from a simple to
         a more complex level; "he proposed an indicator of osseous
         development in children" [syn: growth, growing,
         maturation, development, ontogeny, ontogenesis]
         [ant: nondevelopment]
    2: (electronics) the production of (semiconductor) crystals by
       slow crystallization from the molten state