Source : Webster's Revised Unabridged Dictionary (1913)

Watch \Watch\, v. t. [imp. & p. p. {Watched}; p. pr. & vb. n.
   {Watching}.]
   1. To give heed to; to observe the actions or motions of, for
      any purpose; to keep in view; not to lose from sight and
      observation; as, to watch the progress of a bill in the
      legislature.

            Saul also sent messengers unto David's house to
            watch him, and to slay him.           --1 Sam. xix.
                                                  11

            I must cool a little, and watch my opportunity.
                                                  --Landor.

            In lazy mood I watched the little circles die.
                                                  --Longfellow.

   2. To tend; to guard; to have in keeping.

            And flaming ministers, to watch and tend Their
            earthy charge.                        --Milton.

            Paris watched the flocks in the groves of Ida.
                                                  --Broome.