A1 noun Neutre #3,882 le plus courant

永久

eikyū /eːkʲɨᵝː/

Refers to a state of lasting forever or being permanent without change. It is often used to describe time, systems, or physical states that are intended to remain indefinitely.

Exemples

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1

この幸せが永久に続いてほしいです。

I want this happiness to last forever.

2

平和が永久に続くことを願います。

We pray that peace will continue permanently.

3

このゲーム、永久に遊べるね。

You can play this game forever, huh?

Famille de mots

Nom
永久
Verb
永久化する
Adverbe
永久に
Adjectif
永久的
Apparenté
永久性
💡

Astuce mémo

Look at the kanji: 永 (long/eternal) + 久 (long time). Both parts emphasize the idea of something stretching out for a very long time.

Quiz rapide

このパスポートは___に有効ではありません。

Correct !

La bonne réponse est : 永久

Exemples

1

この幸せが永久に続いてほしいです。

everyday

I want this happiness to last forever.

2

平和が永久に続くことを願います。

formal

We pray that peace will continue permanently.

3

このゲーム、永久に遊べるね。

informal

You can play this game forever, huh?

4

永久凍土の研究は地球温暖化の解明に重要である。

academic

The study of permafrost is important for clarifying global warming.

5

当社のライセンスは永久に有効です。

business

Our company's license is valid permanently.

Famille de mots

Nom
永久
Verb
永久化する
Adverbe
永久に
Adjectif
永久的
Apparenté
永久性

Collocations courantes

永久に forever / permanently
永久欠番 retired number (in sports)
永久保存 permanent storage / preservation
永久歯 permanent teeth
永久凍土 permafrost

Phrases Courantes

永久不変

everlasting and unchanging

永久保存版

a collector's edition worth keeping forever

永久就職

finding a permanent job (formerly used as a metaphor for marriage)

Souvent confondu avec

永久 vs 永遠

Eien (永遠) is more poetic, emotional, and abstract, whereas Eikyuu (永久) sounds more formal, technical, or physical.

📝

Notes d'usage

When used as an adverb, you must add the particle 'ni' (永久に). It is frequently used in legal or scientific contexts to denote something that does not have an expiration date.

⚠️

Erreurs courantes

Learners often use 'Eikyuu' for romantic 'forever' where 'Eien' would be more natural. Also, remember that 'Eikyuu' is usually a noun or a 'no-adjective' (永久の).

💡

Astuce mémo

Look at the kanji: 永 (long/eternal) + 久 (long time). Both parts emphasize the idea of something stretching out for a very long time.

📖

Origine du mot

Derived from Middle Chinese, combining 'ei' (long/perpetual) and 'kyuu' (long duration of time).

Modèles grammaticaux

Noun + の + Noun (e.g., 永久の別れ) 永久 + に + Verb (e.g., 永久に眠る)
🌍

Contexte culturel

In Japan, a 'retired number' in baseball is called 'Eikyuu Ketsuban,' signifying a player's permanent legacy in a team.

Quiz rapide

このパスポートは___に有効ではありません。

Correct !

La bonne réponse est : 永久

Mots lis

往復

A1

A round trip or travel back and forth between two locations. It refers to the act of going to a destination and returning to the starting point.

片道

A1

A noun referring to a one-way trip or journey from one place to another without returning. It is most commonly used when purchasing transportation tickets or describing travel duration.

経路

A1

A route or path taken to get from one place to another. It can also describe the logical steps or channels through which information or things move.

距離

A1

Kyori refers to the physical amount of space between two points or objects. It can also be used figuratively to describe the psychological or emotional gap between people in a relationship.

方向

A1

Refers to the physical way something is pointing or moving, as well as the abstract path or course of action taken. It is commonly used to describe spatial orientation or the general trend of a situation or project.

位置

A1

Refers to the specific physical or abstract place where someone or something is situated. It is frequently used in contexts involving maps, coordinates, or the relative arrangement of objects.

到着

A1

The act of reaching a specific destination after traveling. It can refer to people, vehicles, or physical items like mail and luggage arriving at a place.

経由

A1

Refers to the act of traveling 'via' or 'by way of' a specific location, or passing information/documents through an intermediary. It is used to describe a route that includes a stopover or a channel through which something is transmitted.

地点

A1

A specific point or location on a map or in space. It is often used to denote a precise spot for technical, geographic, or formal purposes rather than a general area.

目的地

A1

目的地 refers to a specific place where someone is going or where a journey ends. It combines the words for 'purpose' and 'ground/place' to describe the physical target of movement or travel.

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