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  • Waldo
    Waldo
    noun
    Pierre or Peter, died c1217, French merchant and religious reformer, declared a heretic: founder of the Waldenses.
  • waldo
    waldo
    noun
    a gadget for manipulating objects by remote control
Synonyms

Waldo

American  
[wawl-doh, wol-] / ˈwɔl doʊ, ˈwɒl- /

noun

  1. Pierre or Peter, died c1217, French merchant and religious reformer, declared a heretic: founder of the Waldenses.


waldo British  
/ ˈwɔːldəʊ /

noun

  1. a gadget for manipulating objects by remote control

"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 waldo

C20: named after Waldo F. Jones, inventor in a science-fiction story by Robert Heinlein

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.

When most people think of the foundational figures in American environmentalism, they likely conjure up such wistful white Transcendentalists as Henry David Thoreau, Ralph Waldo Emerson and Louisa May Alcott.

From Salon • Jun. 19, 2026

Ralph Waldo Emerson declared that Brown would “make the gallows as glorious as the cross.”

From Slate • Apr. 2, 2026

Other American paragons of virtue who were publicly opposed at the time: William Lloyd Garrison, Ralph Waldo Emerson and Frederick Douglass.

From Los Angeles Times • Feb. 6, 2026

As Ralph Waldo Emerson saw it, Brown’s death on the scaffold turned him into a “new Saint awaiting his martyrdom, and who, if he shall suffer, will make the gallows glorious like the cross.”

From The Wall Street Journal • Nov. 9, 2025

He found the stricken rider distracting himself from his pain by firing off aphorisms from Ralph Waldo Emerson—“Old Waldo”—at the nurses.

From "Seabiscuit: An American Legend" by Laura Hillenbrand

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