"chum" in the noun sense
1. buddy, brother, chum, crony, pal, sidekick
a close friend who accompanies his buddies in their activities
2. chum
bait consisting of chopped fish and fish oils that are dumped overboard to attract fish
3. chum salmon, chum, Oncorhynchus keta
a large Pacific salmon with small spots on its back an important food fish
Source: WordNet® (An amazing lexical database of English)
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