HunHun /hʌn/ noun 
1the Huns [plural] a group of nomadic people from Mongolia who entered Europe in the 4th century AD and gradually took control over a large part of central and eastern Europe. Their most famous leader was Atilla, and they are thought of as being cruel and enjoying war and fighting.2[countable] a member of this people3the Hun [plural] slang an insulting word for German people, used especially during World War I
1the Huns [plural] a group of nomadic people from Mongolia who entered Europe in the 4th century AD and gradually took control over a large part of central and eastern Europe. Their most famous leader was Atilla, and they are thought of as being cruel and enjoying war and fighting.2[countable] a member of this people3the Hun [plural] slang an insulting word for German people, used especially during World War I- omnivore
- omnivorous
- on
- on-air
- Onassis, Aristotle
- Onassis, Jackie
- on-board
- once
- Once in Royal David's City
- once-over
- oncologist
- oncology
- oncoming
- Ondaatje, Michael
- one
- O'Neal, Shaquille
- one another
- one-armed bandit
- one-dimensional
- One Flew Over the Cuckoo's Nest
- one-horse
- One Hundred and One Dalmatians
- O'Neill, Eugene
- one-liner
- one-man