From 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. [1913 Webster]
4. (Zool.) A fish; the ruff. [1913 Webster]
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]
From 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. [1913 Webster]
2. (Bot.) The puffball. [1913 Webster]
3. A sort of apple. [Obs.] --Rider's Dict. (1640). [1913 Webster]
From 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]