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legitimacy

American  
[li-jit-uh-muh-see] / lɪˈdʒɪt ə mə si /

noun

  1. the state or quality of being legitimate.

    Synonyms:
    rightfulness, legality, lawfulness

Other Word Forms

Etymology

Origin of legitimacy

First recorded in 1685–95; legitim(ate) + -acy

Explanation

The noun legitimacy means authenticity. If you found an old copy of the Gettysburg Address in your grandmother's attic, you'd have to question its legitimacy when you realized it was written on the back of a car advertisement. Legitimacy comes from the Latin verb legitimare, which means lawful. Legitimacy, then, refers to something that is legal because it meets the specific requirements of the law. The legitimacy of various countries' presidential elections is often discussed, with monitors keeping track of the voting procedures to make sure they follow all the necessary rules.

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Vocabulary lists containing legitimacy

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:

"That hostility would not necessarily restore the Islamic republic's legitimacy, but it could complicate future relations long after the present leadership has changed."

From Barron's Aug. 25, 2026

“Ballmer was the perfect deep-pocket partner to fund Catona’s flagging operations and lend legitimacy to Catona’s carbon credit business,” says the amended complaint viewed by The Times.

From Los Angeles Times Aug. 17, 2026

Prentice said the case "should not be used to cast aspersions on their work or the legitimacy of their roles at Cambridge".

From BBC Aug. 12, 2026

He said: "Harold's policy on the papacy may ultimately have played into the hands of his enemies, giving William's opportunistic invasion the legitimacy of a just war."

From Science Daily Aug. 11, 2026

The creditor’s note was purportedly signed by Roan and was dated “Jany, 1921”; this was important, because it indicated that the note predated efforts to obtain the insurance, giving legitimacy to Hale’s claim.

From "Killers of the Flower Moon" by David Grann

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