chum

[1]	chum around , associate , (Colloq) pal (around)
[2]	chum up with , ally (oneself) with , be friendly with , go with , associate with , (Colloq) pal (up/about/around) with , (US) team up with

[1]	friend , buddy , brother , comrade , companion , crony , pal , confidant(e) , familiar , sidekick , fellow , colleague , (Colloq) pal , sidekick , (Mainly Brit/Australian/New Zealand) mate , (Mainly US/Canadian) buddy
[2]	chum salmon , Oncorhynchus keta