The Collaborative International Dictionary of English v.0.48:

Pope \Pope\ (p[=o]p), n. [AS. p[=a]pa, L. papa father, bishop.
   Cf. Papa, Papal.]
   1. Any ecclesiastic, esp. a bishop. [Obs.] --Foxe.
      [1913 Webster]

   2. The bishop of Rome, the head of the Roman Catholic Church.
      See Note under Cardinal.
      [1913 Webster]

   3. A parish priest, or a chaplain, of the Greek Church.
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   4. (Zool.) A fish; the ruff.
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   Pope Joan, a game at cards played on a round board with
      compartments.

   Pope's eye, the gland surrounded with fat in the middle of
      the thigh of an ox or sheep. --R. D. Blackmore.

   Pope's nose, the rump, or uropygium, of a bird. See
      Uropygium.

   to be more Catholic than the Pope to adhere more
      stringently to Roman Catholic practices and doctrine than
      is required by church doctrine; -- usually used in a
      negative sense to mean, to be excessively pious.
      [1913 Webster +PJC]

The Collaborative International Dictionary of English v.0.48:

Puffin \Puf"fin\ (p[u^]f"f[i^]n), n. [Akin to puff.]
   1. (Zool.) An arctic sea bird Fratercula arctica) allied to
      the auks, and having a short, thick, swollen beak, whence
      the name; -- called also bottle nose, cockandy,
      coulterneb, marrot, mormon, pope, and sea
      parrot.
      [1913 Webster]

   Note: The name is also applied to other related species, as
         the horned puffin (Fratercula corniculata), the
         tufted puffin (Lunda cirrhata), and the razorbill.
         [1913 Webster]

   Manx puffin, the Manx shearwater. See under Manx.
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   2. (Bot.) The puffball.
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   3. A sort of apple. [Obs.] --Rider's Dict. (1640).
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The Collaborative International Dictionary of English v.0.48:

Ruff \Ruff\, Ruffe \Ruffe\, n. [OE. ruffe.] (Zool.)
   A small freshwater European perch (Acerina vulgaris); --
   called also pope, blacktail, and stone perch, or
   striped perch.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pope
    n 1: the head of the Roman Catholic Church [syn: pope,
         Catholic Pope, Roman Catholic Pope, pontiff, Holy
         Father, Vicar of Christ, Bishop of Rome]
    2: English poet and satirist (1688-1744) [syn: Pope,
       Alexander Pope]