one in charge - Oriental country
- one in charge
- one in the eye for O
- one in ［among］ a thousand
- one ken
- one kind
- one koku
- one large
- one layer
- one long thing
- one lump
- one man show
- one man ［person］ one vote
- one mat
- one meal
- one meeting
- one million
- one mind
- one mon
- one month
- one more
- one more for the road
- one morning
- One never knows.
- one night
- one object
- one of
- one of a pair
- one of the best
- one of the boys
- one of the most secluded regions
- one of those days
- one of those things
- one or two
- one out
- one pair of clothes
- one part
- one particle irreducible
- one party
- one percent
- one person
