also: キャディ
noun
caddie; caddy
Golf term for a person who carries a player's clubs and provides advice.
彼はプロゴルファーのキャディーをしている。
He works as a caddie for a professional golfer.
noun
CD-ROM caddy
Computing term for a protective case or tray used to hold a CD-ROM, especially in older optical drives.
On old computers, you put the CD-ROM into a caddy before inserting it into the drive.