chum

1 chum /ˈtʃʌm/ noun
plural chums
1 chum
/ˈtʃʌm/
noun
plural chums
Britannica Dictionary definition of CHUM
[count] informal + old-fashioned
: a close friend
2 chum /ˈtʃʌm/ verb
chums; chummed; chumming
2 chum
/ˈtʃʌm/
verb
chums; chummed; chumming
Britannica Dictionary definition of CHUM
[no object] chiefly US, informal
: to spend time with someone as a friend — usually + around

chum up

[phrasal verb] British, informal
: to become friendly — often + to
3 chum /ˈtʃʌm/ noun
3 chum
/ˈtʃʌm/
noun
Britannica Dictionary definition of CHUM
[noncount]
: pieces of fish thrown off a boat as bait to attract other fish
4 chum /ˈtʃʌm/ verb
chums; chummed; chumming
4 chum
/ˈtʃʌm/
verb
chums; chummed; chumming
Britannica Dictionary definition of CHUM
[no object] US
: to throw pieces of fish off a boat as bait to attract other fish — often + for