Standard Lemma guide

infiltration

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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • 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
  • Bulgarian: филтрат (filtrat) — substance
  • French: infiltration — substance
  • Spanish: filtración — substance
  • Telugu: ఇంకు (iṅku) — substance
  • Dutch: infiltratie — entering secretly
  • Finnish: soluttautuminen — entering secretly
  • French: infiltration — entering secretly
  • German: Infiltration — entering secretly
  • Greek: διείσδυση (dieísdysi) — entering secretly
  • Hindi: घुसपैठ (ghuspaiṭh) — entering secretly
  • Hungarian: beszivárgás — entering secretly
  • Hungarian: beépülés — entering secretly
  • Italian: infiltrazione — entering secretly
  • Japanese: 潜入 (sennyū) — entering secretly
  • Korean: 잠입 (jamip) — entering secretly
  • Persian: نفوذ (nofuz) — entering secretly
  • Spanish: infiltración — entering secretly
  • Swedish: infiltration — entering secretly
  • Telugu: చొరబాటు (corabāṭu) — entering secretly
  • Ukrainian: інфільтра́ція (infilʹtrácija) — entering secretly