Japanese symbol for “infiltration”

潜入

せんにゅう

Romaji: sennyuu

infiltration; sneaking in; going undercover

In Japanese, infiltration is 潜入, read せんにゅう (sennyuu).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

n, vi, vs infiltration; sneaking in; going undercover

Kanji and stroke order

潜

submerge, conceal, hide

on: セン
kun: ひそ.む、もぐ.る、かく.れる、くぐ.る

15 strokes · JLPT 1

入

enter, insert

on: ニュウ、ジュ
kun: い.る、-い.る、-い.り、い.れる

2 strokes · JLPT 4

Other Japanese words for “infiltration”

Word	Reading	Meaning
浸透	しんとう shintou	permeation (of thought, ideology, culture, etc.); infiltration (e.g. of ideas); spread
浸潤	しんじゅん shinjun	infiltration (of a liquid); permeation
浸入	しんにゅう shinnyuu	infiltration (e.g. of water); flooding
浸出	しんしゅつ shinshutsu	infiltration; permeation; exudation
漏入	ろうにゅう rounyuu	leaking in; leak; infiltration

Related words

Words that share a kanji.

Word	Reading	Meaning
潜在	せんざい senzai	potentiality; dormancy; latency
潜む	ひそむ hisomu	to lurk; to be hidden; to be concealed
潜伏	せんぷく senpuku	concealment; hiding; ambush
潜水	せんすい sensui	diving; submerging; going underwater
潜る	くぐる kuguru	to go under; to pass under; to go through
購入	こうにゅう kounyuu	purchase; buying
導入	どうにゅう dounyuu	introduction; bringing in; installation
収入	しゅうにゅう shuunyuu	income; earnings; revenue

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.