Source : Webster's Revised Unabridged Dictionary (1913)

Instruction \In*struc"tion\, n. [L. instructio: cf. F.
   instruction.]
   1. The act of instructing, teaching, or furnishing with
      knowledge; information.

   2. That which instructs, or with which one is instructed; the
      intelligence or information imparted; as:
      (a) Precept; information; teachings.
      (b) Direction; order; command. ``If my instructions may be
          your guide.'' --Shak.

   Syn: Education; teaching; indoctrination; information;
        advice; counsel. See {Education}.

Source : WordNet®

instruction
     n 1: a message describing how something is to be done; "he gave
          directions faster than she could follow them" [syn: {direction}]
     2: the activities of educating or instructing or teaching;
        activities that impart knowledge or skill; "he received no
        formal education"; "our instruction was carefully
        programmed"; "good teaching is seldom rewarded" [syn: {education},
         {teaching}, {pedagogy}, {educational activity}]
     3: the profession of a teacher; "he prepared for teaching while
        still in college"; "pedagogy is recognized as an important
        profession" [syn: {teaching}, {pedagogy}]
     4: (computer science) a line of code written as part of a
        computer program [syn: {command}, {statement}, {program
        line}]