infantrymannoun (pl infantrymen)

• one-horse
• Oneida
• one in the eye for
• oneiric
• one-liner
• one-man
• one-man band
• on end
• oneness
• one-night stand
• one of a kind
• one-off
• one-on-one
• one or other
• one or two
• one-piece
• oner
• onerous
• one's all
• one's best bib and tucker
• one's blood is up
• one's cup of tea
• oneself
• one's finest hour
• one's gorge rises