Chum
Definition 1 of 4
Pro Tip 1/3
Informal Use
'Chum' is casual and best used among friends, not in professional settings. I'm catching up with my chum after work.
Pro Tip 2/3
British Origin
'Chum' is more common in British English and can seem old-fashioned or endearing in American English. My chum at university recommended this book.
Pro Tip 3/3
Age Neutral
'Chum' can denote friendship in any age group, from children to the elderly. Our grandpas are old chums who love chess.