Source : Webster's Revised Unabridged Dictionary (1913)

Din \Din\, n. [AS. dyne, dyn; akin to Icel. dynr, and to AS.
   dynian to resound, Icel. dynja to pour down like hail or
   rain; cf. Skr. dhuni roaring, a torrent, dhvan to sound. Cf.
   {Dun} to ask payment.]
   Loud, confused, harsh noise; a loud, continuous, rattling or
   clanging sound; clamor; roar.

         Think you a little din can daunt mine ears? --Shak.

         He knew the battle's din afar.           --Sir W.
                                                  Scott.

         The dust and din and steam of town.      --Tennyson.

Din \Din\, v. t. [imp. & p. p. {Dinned}; p. pr. & vb. n.
   {Dinning}.] [AS. dynian. See {Din}, n.]
   1. To strike with confused or clanging sound; to stun with
      loud and continued noise; to harass with clamor; as, to
      din the ears with cries.

   2. To utter with a din; to repeat noisily; to ding.

            This hath been often dinned in my ears. --Swift.

   {To din into}, to fix in the mind of another by frequent and
      noisy repetitions. --Sir W. Scott.

Din \Din\, v. i.
   To sound with a din; a ding.

         The gay viol dinning in the dale.        --A. Seward.

Do \Do\, v. t. or auxiliary. [imp. {Din}; p. p. {Done}; p. pr. &
   vb. n. {Doing}. This verb, when transitive, is formed in the
   indicative, present tense, thus: I do, thou doest (?) or dost
   ?, he does (?), doeth (?), or doth (?); when auxiliary, the
   second person is, thou dost. As an independent verb, dost is
   obsolete or rare, except in poetry. ``What dost thou in this
   world?'' --Milton. The form doeth is a verb unlimited, doth,
   formerly so used, now being the auxiliary form. The second
   pers, sing., imperfect tense, is didst (?), formerly didest
   (?).] [AS. d?n; akin to D. doen, OS. duan, OHG. tuon, G.
   thun, Lith. deti, OSlav. d?ti, OIr. d['e]nim I do, Gr. ? to
   put, Skr. dh[=a], and to E. suffix -dom, and prob. to L.
   facere to do, E. fact, and perh. to L. -dere in some
   compounfds, as addere to add, credere to trust. ??? Cf.
   {Deed}, {Deem}, {Doom}, {Fact}, {Creed}, {Theme}.]
   1. To place; to put. [Obs.] --Tale of a Usurer (about 1330).

   2. To cause; to make; -- with an infinitive. [Obs.]

            My lord Abbot of Westminster did do shewe to me late
            certain evidences.                    --W. Caxton.

            I shall . . . your cloister do make.  --Piers
                                                  Plowman.

            A fatal plague which many did to die. --Spenser.

            We do you to wit [i. e., We make you to know] of the
            grace of God bestowed on the churches of Macedonia.
                                                  --2 Cor. viii.
                                                  1.

   Note: We have lost the idiom shown by the citations (do used
         like the French faire or laisser), in which the verb in
         the infinitive apparently, but not really, has a
         passive signification, i. e., cause . . . to be made.

   3. To bring about; to produce, as an effect or result; to
      effect; to achieve.

            The neglecting it may do much danger. --Shak.

            He waved indifferently 'twixt doing them neither
            good not harm.                        --Shak.

   4. To perform, as an action; to execute; to transact to carry
      out in action; as, to do a good or a bad act; do our duty;
      to do what I can.

            Six days shalt thou labor and do all thy work. --Ex.
                                                  xx. 9.

            We did not do these things.           --Ld. Lytton.

            You can not do wrong without suffering wrong.
                                                  --Emerson.
      Hence: To do homage, honor, favor, justice, etc., to
      render homage, honor, etc.

   5. To bring to an end by action; to perform completely; to
      finish; to accomplish; -- a sense conveyed by the
      construction, which is that of the past participle done.
      ``Ere summer half be done.'' ``I have done weeping.''
      --Shak.

Source : WordNet®

din
     n 1: a loud harsh or strident noise [syn: {blare}, {blaring}, {cacophony},
           {clamor}]
     2: the act of making a noisy disturbance [syn: {commotion}, {ruction},
         {ruckus}, {rumpus}, {tumult}]
     [also: {dinning}, {dinned}]

din
     v 1: make a resonant sound, like artillery; "His deep voice
          boomed through the hall" [syn: {boom}]
     2: instill (into a person) by constant repetition; "he dinned
        the lessons into his students"
     [also: {dinning}, {dinned}]

Source : Free On-Line Dictionary of Computing

DIN
     
        Deutsche Institut fuer Normung.  The German standardisation
        body, a member of {ISO}.