1.
A one-man performance is given by only one man rather than by several people.
I saw him do his one-man show in London, which I loved.
ADJ : ADJ n
2.
A one-man organization, such as a business or type of government, is controlled by one person, rather than by several people.
It has grown from a one-man business to a multi-million dollar business with close to $10 million in assets...
He established one-man rule in his country seven months ago.
ADJ : ADJ n