The Collaborative International Dictionary of English v.0.48:

Pat \Pat\, n.
   1. A light, quik blow or stroke with the fingers or hand; a
      tap.
      [1913 Webster]

   2. A small mass, as of butter, shaped by pats.
      [1913 Webster]

            It looked like a tessellated work of pats of butter.
                                                  --Dickens.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pat \Pat\, a. [Cf. pat a light blow, D. te pas convenient, pat,
   where pas is fr. F. passer to pass.]
   Exactly suitable; fit; convenient; timely. "Pat allusion."
   --Barrow.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pat \Pat\, adv.
   In a pat manner.
   [1913 Webster]

         I foresaw then 't would come in pat hereafter.
                                                  --Sterne.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pat \Pat\, v. t. [imp. & p. p. Patted; p. pr. & vb. n.
   Patting.] [Cf. G. patschen, Prov. G. patzen, to strike,
   tap.]
   To strike gently with the fingers or hand; to stroke lightly;
   to tap; as, to pat a dog.
   [1913 Webster]

         Gay pats my shoulder, and you vanish quite. --Pope.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pat
    adv 1: completely or perfectly; "he has the lesson pat"; "had
           the system down pat"
    adj 1: having only superficial plausibility; "glib promises"; "a
           slick commercial" [syn: glib, pat, slick]
    2: exactly suited to the occasion; "a pat reply"
    n 1: the sound made by a gentle blow [syn: pat, rap, tap]
    2: a light touch or stroke [syn: tap, pat, dab]
    v 1: pat or squeeze fondly or playfully, especially under the
         chin [syn: chuck, pat]
    2: hit lightly; "pat him on the shoulder" [syn: dab, pat]

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

PAT

   1.  Personalized Array Translator.

   2.  Port Address Translation.

   (1998-05-09)