1. (small spiny-finned fish of coastal or brackish waters having a large head and elongated tapering body having the ventral fins modified as a sucker)
goby, gudgeon
synonim: kiełb
synonim: kiełb pospolity

2. (small slender European freshwater fish often used as bait by anglers)
gudgeon, Gobio gobio: : synonim: kiełb
synonim: kiełb pospolity

3. (true gudgeons)
Gobio, genus Gobio: : synonim: kiełb
synonim: kiełb pospolity