chum

详细解释:n. 密友, 室友
vi. 结为密友
相关词组:
chum up with sb

词型变化：

动词过去式:chummed过去分词:chummed现在分词:chumming第三人称单数:chums

英语解释：

名词 chum:

a close friend who accompanies his buddies in their activities同义词：buddy, brother, crony, pal, sidekick