: 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
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The young boy’s biggest concern is staying out of the crosshairs of Calavera (Mauro Guzmán), the neighborhood bully who seems destined to follow the same path as his intimidating older brother, Felix (Cosmo Gonzalez). Aramide Tinubu, Variety, 8 July 2026 The title poem takes the reader into the crosshairs of war’s violence, exploding euphemistic descriptions of its horrors. Erik Pedersen, Oc Register, 7 July 2026 As a high-ranking member of the soap’s shadowy World Securities Bureau (WSB), Z quickly found himself at the center of dangerous crosshairs. Ryan Coleman, Entertainment Weekly, 6 July 2026 The misstep immediately sparked backlash for cultural insensitivity and drew over 50 million views on Weibo—other Western brands, including H&M, Dolce & Gabbana, Dior, Burberry, and Gucci, have been caught in similar cultural crosshairs. Pamela N. Danziger, Forbes.com, 29 June 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 12 Jul. 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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