ephemeral
gb/ɪfˈɛmɚəl/ us/ɪfˈɛmɚəl/
C1
英語
rövid életű, múlékony, efemer, efemera, múló jelenség
C1
FORMAL
1
rövid életű
B2
múlékony
C1
用法パターン：
[something] is ephemeral; an ephemeral [noun]
The city’s fame was ephemeral, fading within a few months.
A város hírneve rövid életű volt, és néhány hónapon belül elhalványult.
Cherry blossoms are beautiful but ephemeral, lasting only a short time.
A cseresznyevirágzás gyönyörű, de múlékony, csak rövid ideig tart.
They tried to capture the ephemeral feeling of summer in the song.
学習者向け例文
Happiness can be ephemeral.
A boldogság lehet múlékony.
The rain was ephemeral and stopped quickly.
Az eső csak rövid ideig tartott, és gyorsan elállt.
よくある間違い：
Often confused with 'temporary' (can be longer and more planned) and misspelled as *ephermeral*.
意味
lasting only a short time
コロケーション
ephemeral beauty
|ephemeral pleasure
|ephemeral moment
|ephemeral fame
|ephemeral nature
|ephemeral joy
|ephemeral relationship
|ephemeral trend
|ephemeral quality
|ephemeral existence
類義語
fleeting (Emphasizes how quickly something passes.)
|
short-lived (Plain and direct; focuses on limited duration.)
|
transitory (More formal; suggests not permanent by nature.)
対義語
enduring (Lasting for a long time despite difficulty or change.)
|
lasting (Continuing for a long time.)
|
permanent (Not expected to change or end.)
テーマ
time
|describing_things
定義
If something is ephemeral, it does not last long.
Lasting for a very short time; quickly passing or disappearing.
C1
TECHNICAL
2
efemer
C2
用法パターン：
ephemeral [data/resource/instance]
The service uses ephemeral containers that are created and destroyed on demand.
A szolgáltatás efemer konténereket használ, amelyeket igény szerint hoz létre és szüntet meg.
Store logs in persistent storage, not in an ephemeral directory.
A naplókat tartós tárhelyen tárold, ne efemer könyvtárban.
The system generates ephemeral credentials that expire after a few minutes.
学習者向け例文
This is ephemeral storage, so the files will disappear.
Ez efemer tárhely, ezért a fájlok el fognak tűnni.
The app creates an ephemeral password that expires soon.
Az alkalmazás ideiglenes jelszót hoz létre, amely hamar lejár.
よくある間違い：
In tech writing, it does not mean 'unimportant'; it means 'not persistent' or 'short-lived by design'.
意味
temporary in computing systems
コロケーション
ephemeral data
|ephemeral storage
|ephemeral instance
|ephemeral container
|ephemeral environment
|ephemeral credentials
|ephemeral key
|ephemeral port
|ephemeral filesystem
|ephemeral volume
類義語
temporary (General term; not necessarily implying non-persistence.)
|
nonpersistent (More explicit about not being stored long-term.)
対義語
persistent (Designed to remain available and stored over time.)
|
durable (Able to survive failures and remain intact.)
テーマ
technology
|computing
定義
In technology, ephemeral means temporary and not saved permanently.
In computing, designed to exist only briefly and not be kept as long-term or persistent data or resources.
名詞
C1
FORMAL
3
efemera
C2
用法パターン：
an ephemeral; ephemerals
In the museum’s archive, advertisements and ticket stubs are treated as ephemerals worth preserving.
A múzeum archívumában a reklámokat és a jegycsonkokat megőrzésre érdemes efemeráknak tekintik.
He collected the ephemerals of the internet—memes, slogans, and short-lived trends.
Az internet efemeráit gyűjtötte: mémeket, szlogeneket és rövid életű trendeket.
The book is a study of ephemerals that shaped public opinion and then vanished.
学習者向け例文
A postcard can be an ephemeral.
Egy képeslap is lehet efemera.
She keeps old ephemerals in a box.
Régi efemerákat tart egy dobozban.
よくある間違い：
This noun use is less common than the adjective; many situations sound more natural with 'something ephemeral' or 'a fleeting thing'.
意味
something that lasts briefly
コロケーション
a cultural ephemeral
|digital ephemerals
|the ephemerals of everyday life
類義語
transient (Often used for things that exist briefly and then pass away.)
|
short-lived thing (More explicit and less formal.)
対義語
constant (Something that stays the same or continues over time.)
|
fixture (Something that is permanently present in a place or situation.)
テーマ
time
|describing_things
定義
An ephemeral is something that does not last long.
A thing, experience, or phenomenon that lasts only a short time.
文法
辞書形
ephemeral
IPA
GB/ɪfˈɛmɚəl/
US/ɪfˈɛmɚəl/
音節・強勢
eph - em - er - al （4音節）
Stress on 2nd syllable (em)
活用形
Adjective
- Base: ephemeral
Noun
- Base: ephemeral
- Plural: ephemerals
関連語
表現
ephemeral content
1/ɪfˈɛmɚəl kˈɑntɛnt/
fixed phrase
posts that disappear after time
Ephemeral content is content online that disappears after a short time.
例文
- Brands use ephemeral content to share behind-the-scenes clips.
- She prefers ephemeral content because it feels less permanent than a regular post.
- The app added tools for creating ephemeral content with a 24-hour timer.
学習者向け例文
- I posted an ephemeral story.
- Ephemeral content disappears quickly.
ephemeral key
1/ɪfˈɛmɚəl kˈi/
fixed phrase
technical
one-time cryptographic key
An ephemeral key is a temporary security key used for a short time.
例文
- The protocol uses an ephemeral key for each session.
- Ephemeral keys reduce the impact if a long-term key is compromised.
- The client generates an ephemeral key pair during the handshake.
学習者向け例文
- The app generates an ephemeral key.
- Ephemeral keys are used only briefly.
ephemeral port
1/ɪfˈɛmɚəl pˈɔɹt/
fixed phrase
technical
short-term port used for connections
An ephemeral port is a temporary port number used during a network connection.
例文
- The client opened an ephemeral port to connect to the server.
- Firewall rules must allow return traffic to ephemeral ports for established connections.
- Each new connection may use a different ephemeral port.
学習者向け例文
- The computer used an ephemeral port.
- Ephemeral ports change often.
ephemeral storage
1/ɪfˈɛmɚəl stˈɔɹɪd͡ʒ/
fixed phrase
technical
temporary storage that is not kept
Ephemeral storage is temporary storage; your data may be deleted soon.
例文
- Don’t keep important files in ephemeral storage; they may be wiped on restart.
- The workload uses ephemeral storage for caches and temporary downloads.
- They moved the database off ephemeral storage to prevent data loss.
学習者向け例文
- This server has ephemeral storage.
- Ephemeral storage is not permanent.