noun · 6 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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Received-Pronunciation:/ɪnfɪlˈtɹeɪʃən/
Southern-England:Recorded audio is listed in the source snapshot.
Canada, General-American:/ˌɪnfəlˈtɹeɪʃən/
New-Jersey:Recorded audio is listed in the source snapshot.
CMU ARPABET:IH2 N F IH0 L T R EY1 SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The act or process of infiltrating, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The act or process of infiltrating, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body.
process by which water on the ground surface enters the soil.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Qualifier: soil science
Topics: geography, hydrology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The substance which has entered the pores or cavities of a body.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
The act of secretly entering a physical location and/or organization.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: penetration, incursion
6
noun
Meaning 6
the slow passage of a liquid through a filtering medium
Definition source: Princeton WordNet 3.0
Examples
the percolation of rainwater through the soil
the infiltration of seawater through the lava
Meaning relationships
Synonyms: percolation
Antonyms: none provided
Broader terms: filtration
History
Etymology
From Middle English infiltracioun, from Medieval Latin infiltrātiōnem, infiltrātiō. By surface analysis, infiltrat(e) + -ion.
Across languages
Translations
34 source translations are retained for this English entry.
Bulgarian:
процеждане
(proceždane)
— act or process of infiltrating
Bulgarian:
просмукване
(prosmukvane)
— act or process of infiltrating
Czech:
infiltrace
— act or process of infiltrating
Dutch:
infiltratie
— act or process of infiltrating
French:
infiltration
— act or process of infiltrating
German:
Infiltration
— act or process of infiltrating
Hindi:
घुसपैठ
(ghuspaiṭh)
— act or process of infiltrating
Hungarian:
víz beszivárgása
— act or process of infiltrating
Hungarian:
beszivárgás
— act or process of infiltrating
Manx:
yn-heeley
— act or process of infiltrating
Northern Sami:
infiltrašuvdna
— act or process of infiltrating
Spanish:
filtración
— act or process of infiltrating
Telugu:
ఇంకు
(iṅku)
— act or process of infiltrating
Ukrainian:
інфільтра́ція
(infilʹtrácija)
— act or process of infiltrating