Tomodachi, ...san, ...chan, ...kun

ともだち tomodachi
  • 友達 ともだち tomodachi = friend
  • 仲間 なかま nakama = member of a group
  • 友人 ゆうじん yuujin = friend (formal)

~さん、~ちゃん、~くん、~さま ...san, ...chan, ...kun, ...sama
  • ~さん ...san (formal)
  • ~ちゃん ...chanb (basically for child, sounds cute)
  • ~君 ~くん ...kun (basically for boy)
  • ~様 ~さま ...sama (formal, respect)