Source : Webster's Revised Unabridged Dictionary (1913)

Instruct \In*struct"\, a. [L. instructus, p. p. of instruere to
   furnish, provide, construct, instruct; pref. in- in, on +
   struere. See {Structure}.]
   1. Arranged; furnished; provided. [Obs.] ``He had neither
      ship instruct with oars, nor men.'' --Chapman.

   2. Instructed; taught; enlightened. [Obs.] --Milton.

Instruct \In*struct"\, v. t. [imp. & p. p. {Instructed}; p. pr.
   & vb. n. {Instructing}.]
   1. To put in order; to form; to prepare. [Obs.]

            They speak to the merits of a cause, after the
            proctor has prepared and instructed the same for a
            hearing.                              --Ayliffe.

   2. To form by communication of knowledge; to inform the mind
      of; to impart knowledge or information to; to enlighten;
      to teach; to discipline.

            Schoolmasters will I keep within my house, Fit to
            instruct her youth.                   --Shak.

   3. To furnish with directions; to advise; to direct; to
      command; as, the judge instructs the jury.

            She, being before instructed of her mother, said,
            Give me here John Baptist's head in a charger.
                                                  --Matt. xiv.
                                                  8.

            Take her in; instruct her what she has to do.
                                                  --Shak.

   Syn: To teach; educate; inform; train; discipline;
        indoctrinate; direct; enjoin.

Source : WordNet®

instruct
     v 1: impart skills or knowledge to; "I taught them French"; "He
          instructed me in building a boat" [syn: {teach}, {learn}]
     2: give instructions or directions for some task; "She
        instructed the students to work on their pronounciation"
     3: make aware of; "Have the students been apprised of the
        tuition hike?" [syn: {apprise}, {apprize}]