Dictionary.com
Thesaurus.com

one-man

American  
[wuhn-man] / ˈwʌnˌmæn /

adjective

  1. of or relating to, or operated, performed, or used by one person.

    a one-man office; a one-man band.

  2. preferring or seeking romantic involvement with one man only.

    a one-man woman.


one-man British  

adjective

  1. consisting of or done by or for one man

    a one-man band

    a one-man show

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of one-man

First recorded in 1835–45

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Nowadays Anderson operates as a one-man band designing and manufacturing resortwear for independent retailers.

From BBC

Our Town has been partly funded by a recent one-man tour by Matthew Rhys, another of Wales's biggest acting names.

From BBC

It’s practically a family tree in metal, commemorating the one-man fundraising efforts of his father, the business developer Steve Soboroff, to repair the local play area.

From Los Angeles Times

Lens did not benefit from the one-man advantage until the start of the second half when they laid siege to the Toulouse goal.

From Barron's

I'm also thinking of doing a one-man show, talking about my time on Harry Potter and the crazy adventures I've had.

From BBC