Search Dictionary
Definition of invasion

invasion

/ɪnˈveɪ.ʒən/
in · va · sion

Adverb:invasively
•
Plural:invasions
•
Adjective:invasive
JUMP TO:

invasion Lexical Profile

invasion Game Scores & Validity

• noun

1

An instance of entering a country, region, or territory by force with an armed force in order to conquer or occupy it.

Example

"The historical museum features an exhibit detailing the Roman invasion of ancient Britain."


2

An unwelcome intrusion into another person's private domain, rights, or personal space.

Example

"The celebrity filed a lawsuit claiming that the unauthorized photographs were a blatant invasion of privacy."


3

An unwelcome, overwhelming influx or arrival of a large number of people, animals, or things into a place.

Example

"Every summer, the quiet coastal village prepares for the annual invasion of holiday tourists."


4

The onset, penetration, or harmful spread of a disease, pathogen, or abnormal cells within body tissues or an ecosystem.

Example

"Early screening helps doctors detect the local invasion of abnormal cells before they spread to surrounding tissues."

Synonyms
View all synonyms for invasion
Antonyms
View all antonyms for invasion

• Rhymes for invasion

Word Origin & Etymology

Borrowed in the 15th century from Old French invasion or directly from Late Latin invasio ('an attack, assault'), derived from the Latin verb invadere ('to go into, enter forcibly'), combining in- ('into') and vadere ('to go, walk').

Cite this Entry


Wordmom. (2026). Definition of Invasion. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/invasion
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Dictionary & Reference
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.