From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] [news1] [nf03] 犬, 狗, [ichi1] [news1] [nf03] いぬ
1. (noun (common) (futsuumeishi))
dog (Canis (lupus) familiaris)
2. snoop (i.e. a detective, a spy, etc.)
3.
Note: derogatoryloser, asshole
4. (noun, used as a prefix)
counterfeit, inferior, useless, wasteful