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Synonyms

permeate

American  
[pur-mee-eyt] / ˈpɜr miˌeɪt /

verb (used with object)

permeated, permeating
  1. to pass into or through every part of.

    Bright sunshine permeated the room.

  2. to penetrate through the pores, interstices, etc., of.

  3. to be diffused through; pervade; saturate.

    Cynicism permeated his report.


verb (used without object)

permeated, permeating
  1. to become diffused; penetrate.

permeate British  
/ ˈpɜːmɪˌeɪt /

verb

  1. to penetrate or pervade (a substance, area, etc)

    a lovely smell permeated the room

  2. to pass through or cause to pass through by osmosis or diffusion

    to permeate a membrane

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does permeate mean? Permeate means to penetrate, pass through, and often become widespread throughout something. Similar words are pervade and saturate.Permeate can be used both in the context of the physical spread of something within a space and in more figurative ways. Dye permeates fabric. A smell can permeate a room. An idea can permeate someone’s mind.The adjective permeable means capable of being permeated, especially by liquids or gases, as in Permeable surfaces should be sealed to prevent leaks. The adjective permeating describes things that have permeated or have the ability to permeate, as in Social media has become a permeating aspect of our lives.Example: This material has a special coating that won’t allow anything to permeate its surface.

Other Word Forms

  • interpermeate verb (used with object)
  • nonpermeation noun
  • nonpermeative adjective
  • permeation noun
  • permeative adjective
  • permeator noun
  • unpermeating adjective
  • unpermeative adjective

Etymology

Origin of permeate

First recorded in 1650–60; from Latin permeātus, past participle of permeāre “to pass through”; per-, meatus

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.

These fields permeate every cubic centimeter of space and time.

From Science Daily • Mar. 10, 2026

Western consumers "are increasingly aligning with circular-economy principles, prioritizing lifecycle extension and reducing electronic waste" as environmental concerns permeate public debate, the authors wrote.

From Barron's • Mar. 3, 2026

The author’s financial fixations permeate every page of the book.

From The Wall Street Journal • Jan. 27, 2026

Seeing these ideas permeate the culture over the years has left me confused and frustrated.

From Salon • May 18, 2025

I remember this well, because that was the soap we were issued for laundry; later on, the smell of it would permeate these rooms.

From "Farewell to Manzanar" by Jeanne Houston