Search Result for "spyhole": 
Wordnet 3.0

NOUN (1)

1. a hole (in a door or an oven etc) through which you can peep;
[syn: peephole, spyhole, eyehole]



WordNet (r) 3.0 (2006):

spyhole
    n 1: a hole (in a door or an oven etc) through which you can
         peep [syn: peephole, spyhole, eyehole]