prohibit

verb

pro·​hib·​it prō-ˈhi-bət How to pronounce prohibit (audio)
prə-
prohibited; prohibiting; prohibits
Synonyms of prohibitnext

transitive verb

1
: to forbid by authority : enjoin
2
a
: to prevent from doing something
b
Choose the Right Synonym for prohibit

forbid, prohibit, interdict, inhibit mean to debar one from doing something or to order that something not be done.

forbid implies that the order is from one in authority and that obedience is expected.

smoking is forbidden in the building

prohibit suggests the issuing of laws, statutes, or regulations.

prohibited the sale of liquor

interdict implies prohibition by civil or ecclesiastical authority usually for a given time or a declared purpose.

practices interdicted by the church

inhibit implies restraints or restrictions that amount to prohibitions, not only by authority but also by the exigencies of the time or situation.

conditions inhibiting the growth of free trade

Examples of prohibit in a Sentence

The rules prohibit dating a coworker. The prison's electric fence prohibits escape.
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.
Items including coolers, folding chairs, frisbees, balls, metal drink containers and aerosol cans — including spray sunscreen — are prohibited. Kyla Guilfoil, NBC news, 5 July 2026 This ignores the obvious fact that the Constitution prohibits Congress from giving official status to any religion or from preventing someone from practicing the religion of their choice. Kenneth Seeskin, Chicago Tribune, 5 July 2026 Newport Beach now prohibits canopies larger than 6 feet by 6 feet and requires that the structures not be connected. Hannah Fry, Los Angeles Times, 5 July 2026 The said Rule also prohibits Chinese software in cars sold in the US beginning with the 2027 model year, with a further ban on Chinese hardware from the year 2029 as well. New Atlas, 4 July 2026 See All Example Sentences for prohibit

Word History

Etymology

Middle English, from Latin prohibitus, past participle of prohibēre to keep off, from pro- forward + habēre to hold — more at pro-, give

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of prohibit was in the 15th century

Browse Nearby Words

Cite this Entry

“Prohibit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prohibit. Accessed 5 Jul. 2026.

Kids Definition

prohibit

verb
pro·​hib·​it prō-ˈhib-ət How to pronounce prohibit (audio)
1
: to forbid by authority
prohibit parking
2
: to make impossible
the high walls prohibit escape

More from Merriam-Webster on prohibit

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster