(pip) noun
1. The seed of an apple, orange, etc.
2. Slang An admirable person or thing. [Short for PIPPIN]

(pip) noun
1. A spot, as on a playing card, domino, or die.
2. Any of the small buds of the lily-of-the-valley.
3. Any dormant rootstock of several flowering plants, as anemones and peonies.
4. One of the diamond-shaped sections on the rind of a pineapple.
5. A sharp sound or luminous signal produced mechanically or electronically, as in radar. [<earlier peep; origin unknown]

(pip) v. pipped, pip·ping v.t.
To break through (the shell), as a chick in the egg.
—v.i. To peep; chirp. [Prob. var. of PEEP¹]

(pip) noun
1. A contagious disease of fowls in which mucus forms in the throat or a scale on the tongue.
2. Slang A mild human ailment: used humorously; also, a grouch; an ill temper. [<MDu. pippe <LL pipita <L pituita mucus, the pip]