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iron man

American  

noun

  1. a person, as a worker or athlete, of great physical endurance who can be depended upon to perform a given task or job tirelessly.

  2. a machine that performs a job formerly done by hand; robot.

  3. Slang. a dollar bill or a silver dollar.


iron man British  

noun

  1. an event at a surf carnival in which contestants compete at swimming, surfing, running, etc

  2. a competitor at such an event

"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 iron man

First recorded in 1610–20

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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.

See Examples For:

In September, Sony Pictures Television handed the keys to its game show “Wheel of Fortune” to Ryan Seacrest, broadcasting’s iron man.

From Los Angeles Times Jan. 6, 2025

However, this would-be iron man recently suffered a set-back when he was arrested in the central African nation of Chad.

From BBC Nov. 27, 2024

Ryan Kerrigan, the Washington Commanders’ all-time sack leader whose dedicated workouts led to an impressive iron man streak, announced his retirement Friday after playing 11 seasons in the NFL.

From Washington Times Jul. 29, 2022

Yes, Wilson has been an iron man, missing just three games in his 10-year career.

From Seattle Times May 12, 2022

And high above me now the bridge seemed to move off to where I could not see, striding like a robot, an iron man, whose iron legs clanged doomfully as it moved.

From "Invisible Man" by Ralph Ellison

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