: a fine wire or thread in the focus of the eyepiece of an optical instrument used as a reference line in the field or for marking the instrumental axis
—used figuratively to describe someone or something being targeted as if through an aiming device having crosshairs
The tactics landed the company's top brass in the crosshairs of the Securities and Exchange Commission.—Houston Chronicle

Examples of crosshair in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Those supplies are often caught in geopolitical crosshairs, as the US and China — locked in a fierce AI race — maneuver to deny each other technological advantages. — Brendan Ruberry, semafor.com, 5 Nov. 2026 Laila is in Conteh’s crosshairs for whatever reasons are behind her being removed from active duty, and Reed could get her out of whatever that pickle is. — Sophie Brookover, Vulture, 5 Nov. 2026 This is a team, at 6-1, that has the playoffs in its crosshairs. — Sean Joseph Outkick, FOXNews.com, 5 Nov. 2026 The split vote to kill the tolls sent shockwaves all the way to Raleigh, putting the entire Charlotte region in state lawmakers’ crosshairs before the highway project was ultimately revived in September. — Charlotte Observer, 2 Nov. 2026 See All Example Sentences for crosshair

Word History

First Known Use

1684, in the meaning defined above

Time Traveler
The first known use of crosshair was in 1684

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Cite this Entry

“Crosshair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crosshair. Accessed 11 Nov. 2026.

Kids Definition

cross hair

noun
: one of the very thin wires or threads in the eyepiece of an optical instrument (as a microscope) used as a reference line
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