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ReleaseHold[expr]

removes Hold, HoldForm, HoldPattern, HoldComplete and HoldCompleteForm in expr.

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Basic Examples  
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ReleaseHold

ReleaseHold[expr]

removes Hold, HoldForm, HoldPattern, HoldComplete and HoldCompleteForm in expr.

Details

  • ReleaseHold removes only one layer of Hold etc.; it does not remove inner occurrences in nested Hold etc. functions.

Examples

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Basic Examples  (1)

Wolfram Language code: Hold[1 + 1]
Wolfram Language code: ReleaseHold[%]

Scope  (1)

ReleaseHold removes all standard unevaluated containers:

Wolfram Language code: ReleaseHold /@ {Hold[1 + 2], HoldForm[2 + 3], HoldComplete[3 + 4], HoldCompleteForm[4 + 5], HoldPattern[_ * _]}

Properties & Relations  (1)

ReleaseHold removes only the outermost layer of Hold:

Wolfram Language code: ReleaseHold[f[Hold[1 + 2]]]
Wolfram Language code: ReleaseHold[f[Hold[1 + g[Hold[2 + 3]]]]]
Wolfram Research (1991), ReleaseHold, Wolfram Language function, https://reference.wolfram.com/language/ref/ReleaseHold.html (updated 2025).

Text

Wolfram Research (1991), ReleaseHold, Wolfram Language function, https://reference.wolfram.com/language/ref/ReleaseHold.html (updated 2025).

CMS

Wolfram Language. 1991. "ReleaseHold." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2025. https://reference.wolfram.com/language/ref/ReleaseHold.html.

APA

Wolfram Language. (1991). ReleaseHold. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ReleaseHold.html

BibTeX

@misc{reference.wolfram_2026_releasehold, author="Wolfram Research", title="{ReleaseHold}", year="2025", howpublished="\url{https://reference.wolfram.com/language/ref/ReleaseHold.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_releasehold, organization={Wolfram Research}, title={ReleaseHold}, year={2025}, url={https://reference.wolfram.com/language/ref/ReleaseHold.html}, note=[Accessed: 13-June-2026]}