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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

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.

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waldo British  

/ ˈwɔːldəʊ /

noun

1. a gadget for manipulating objects by remote control

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Etymology

Origin of waldo

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

Example Sentences

Ralph Waldo Emerson’s standards of literary criticism, like his philosophy, are focused on realism, felt experience and humanity.

From The Wall Street Journal • Mar. 24, 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

While the phrase originates from Ralph Waldo Emerson’s “Concord Hymn” and refers specifically to the Battle of Concord, the first shots of the Revolutionary War were actually fired earlier that day in Lexington.

From Slate • Apr. 19, 2025

The best definition of the American Dream I’ve ever encountered came from one of the founders of The Atlantic, Ralph Waldo Emerson.

From Salon • Mar. 26, 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