Definition of "chum"
chum1
/t͡ʃʌm/
verb
third-person singular simple present chums, present participle chumming, simple past and past participle chummed
chum2
/t͡ʃʌm/
chum3
/t͡ʃʌm/
third-person singular simple present chums, present participle chumming, simple past and past participle chummed