The Collaborative International Dictionary of English v.0.48:

Din \Din\, v. i.
   To sound with a din; a ding.
   [1913 Webster]

         The gay viol dinning in the dale.        --A. Seward.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Din \Din\ (d[i^]n), 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.
   [1913 Webster]

         Think you a little din can daunt mine ears? --Shak.
   [1913 Webster]

         He knew the battle's din afar.           --Sir W.
                                                  Scott.
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         The dust and din and steam of town.      --Tennyson.
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The Collaborative International Dictionary of English v.0.48:

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.
      [1913 Webster]

   2. To utter with a din; to repeat noisily; to ding.
      [1913 Webster]

            This hath been often dinned in my ears. --Swift.
      [1913 Webster]

   To din into, to fix in the mind of another by frequent and
      noisy repetitions. --Sir W. Scott.
      [1913 Webster]

WordNet (r) 3.0 (2006):

din
    n 1: a loud harsh or strident noise [syn: blare, blaring,
         cacophony, clamor, din]
    2: the act of making a noisy disturbance [syn: commotion,
       din, ruction, ruckus, rumpus, tumult]
    v 1: make a resonant sound, like artillery; "His deep voice
         boomed through the hall" [syn: boom, din]
    2: instill (into a person) by constant repetition; "he dinned
       the lessons into his students"

The Free On-line Dictionary of Computing (19 January 2023):

DIN

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