英語

device

gb/dɪvˈaɪs/ us/dɪvˈaɪs/
A2 英語
~ 1900
語義
0件の語義
名詞 A2 entity
1

A machine or tool for a task

A machine or tool made for a special job.

用法パターン: [someone] uses a device to [do something]
よくある間違い:
Learners sometimes confuse 'device' with 'advice' because they sound similar but have very different meanings.
類義語
gadget (Often implies a small, clever, or novel device.) | appliance (Usually refers to a larger household device for a specific use.)
対義語
tool (While sometimes overlapping, 'tool' often refers to simpler, non-electronic instruments.)
コロケーション
electronic device |mobile device |medical device |security device |storage device
テーマ
technology |daily life |science |core_vocabulary
例文
  • The new device can track your heart rate.
  • She bought a device to help her sleep better.
  • This device connects to your phone via Bluetooth.
  • The company is testing a new medical device.
  • He invented a device that makes sorting recycling easier.
学習者向け例文
  • I use a device to call my friends.
  • This device can take photos.
  • My mother has a cooking device.
  • He made a small device for cleaning.
  • We need a device to play music.
名詞 B2 entity
2

A method or plan to achieve something

A way or plan to get something done.

用法パターン: [someone] uses a device to [achieve something]
よくある間違い:
Learners may think 'device' always refers to physical machines and not realize it can mean a method or trick in language or art.
類義語
technique (Focuses on the skillful way of doing something.) | strategy (Emphasizes planning to achieve a goal.)
対義語
accident (An unplanned event, opposite of a deliberate method.)
コロケーション
literary device |rhetorical device |plot device
テーマ
communication |strategy |core_vocabulary |business |work
例文
  • Foreshadowing is a common literary device.
  • The teacher used humor as a device to keep the class engaged.
  • The movie’s twist ending was just a plot device.
  • Repetition is an effective rhetorical device.
  • They used the element of surprise as a device in their campaign.
学習者向け例文
  • A story can use a funny device.
  • The writer used a sad device in the book.
  • We use this device to make people happy.
  • The teacher used a game as a device.
  • That film had an exciting device at the end.
名詞 technical C1 entity
3

A symbol or emblem for identification

A picture or symbol that shows who someone is or what they believe.

類義語
emblem (A symbol representing an idea or group.) | badge (A small emblem worn to show membership or rank.)
対義語
plainness (Lack of any decorative or symbolic mark.)
コロケーション
coat of arms device |heraldic device
テーマ
heraldry |symbols |arts_entertainment |communication |core_vocabulary
例文
  • The knight’s shield bore the family device.
  • Coins were stamped with the king’s personal device.
  • The flag displayed the national device in the center.
  • Heralds designed a new device for the royal wedding.
学習者向け例文
  • The shield has a red device.
  • The coin shows the king’s device.
  • Our flag has a blue and white device.
  • The family has a gold lion as its device.
文法
辞書形
device
IPA
GB/dɪvˈaɪs/
US/dɪvˈaɪs/
音節・強勢
device (1音節)
活用形
Noun
  • Base: device
  • Plural: devices
関連語
Forms
devices noun
Core family
devise verb B2
表現

medical device

1
/mˈɛdɪkəl dɪvˈaɪs/
fixed phrase technical

Equipment for medical use

A machine or tool doctors use to help sick people.

例文
  • The hospital bought new medical devices for surgery.
  • Pacemakers are life-saving medical devices.

mobile device

1
/mˈoʊbəl dɪvˈaɪs/
fixed phrase

Portable electronic communication/computing tool

A small computer you can carry and use anywhere, like a smartphone or tablet.

例文
  • Many people check emails on their mobile devices.
  • Mobile devices are replacing desktop computers for many tasks.

plot device

1
/plˈɑt dɪvˈaɪs/
fixed phrase

Story element that moves plot forward

Something in a story that makes the events happen or change.

例文
  • The mysterious letter was just a plot device to bring the characters together.
  • Amnesia is often used as a plot device in movies.

storage device

1
/stˈɔɹɪd͡ʒ dɪvˈaɪs/
fixed phrase technical

Hardware for saving digital data

A machine part that keeps computer information safe.

例文
  • The USB stick is my favorite storage device.
  • Cloud storage is replacing some physical storage devices.

tracking device

1
/tɹˈækɪŋ dɪvˈaɪs/
fixed phrase

An electronic tool for location tracking

A small machine that finds where something or someone is.

例文
  • The police placed a tracking device on the suspect’s car.
  • My phone has a built-in tracking device in case it gets lost.

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