duplicate
gb/dˈuplɪkɪt/ us/dˈuplɪkɪt/
B1
英語
~ 8800
語義
0件の語義
動詞
B1
action
1
make an exact copy
To make something that is exactly the same as another thing.
用法パターン：
to duplicate [something]
よくある間違い：
Learners sometimes use "double" instead of "duplicate" (e.g., *double a file*). Use "duplicate a file" or simply "copy a file" when you mean to make an exact copy, especially in technical or office contexts.
類義語
copy (Most general and common word for making another version of something.)
|
replicate (Slightly more formal or technical; often used for experiments, data, or processes.)
対義語
destroy (Opposite because it removes something instead of making another version of it.)
コロケーション
duplicate a file
|duplicate a key
|duplicate a document
|duplicate a record
|duplicate the results
テーマ
technology
|business
|daily life
|communication
|core_vocabulary
例文
- Please duplicate this contract and send a copy to each partner.
- Make sure you duplicate the file before you start editing it.
- The locksmith can duplicate your house key in a few minutes.
- The lab was unable to duplicate the original experiment.
- We need to duplicate the database for backup purposes.
学習者向け例文
- I asked her to duplicate the form for me.
- He duplicated the photo and gave one to each friend.
- You should duplicate your important files.
- The shop can duplicate any type of key.
- She duplicated the list so everyone could have one.
名詞
B1
entity
2
an exact copy of something
Something that is exactly the same as another thing; a copy.
用法パターン：
a duplicate of [something]
よくある間違い：
Learners may say "make a duplicate of copy" or "duplicate copy" when only one word is needed. Say "make a copy" or "make a duplicate of the contract," not *"duplicate of copy".* Note that native speakers do sometimes say "duplicate copy" in speech, but it is considered redundant in careful writing.
類義語
copy (Most common everyday term for something made to be like another thing.)
|
replica (Often used for physical objects; can suggest a carefully made or official copy.)
対義語
original (Opposite because it is the first or main version, not the copy.)
コロケーション
an exact duplicate
|a duplicate of the original
|keep a duplicate
|duplicate key
|duplicate copy
テーマ
business
|technology
|daily life
|core_vocabulary
|communication
例文
- Keep a duplicate of your passport in a safe place.
- The museum keeps a duplicate of the painting in storage.
- I always carry a duplicate key in my wallet.
- Please send the contract and one duplicate to our office.
- The system flagged the second file as a duplicate.
学習者向け例文
- He made a duplicate of the key.
- I need a duplicate of this letter.
- We keep a duplicate of every invoice.
- This is a duplicate of the report from last week.
- The second card is just a duplicate.
動詞
B2
action
3
repeat work or process needlessly
To do the same work or process again when it is not needed.
用法パターン：
to duplicate [work/process/effort]
よくある間違い：
Learners sometimes use only "repeat" where "duplicate" is better in business or technical contexts, especially with "work," "efforts," or "data." "Repeat" can be neutral or positive, but "duplicate" here often suggests waste or error.
類義語
repeat (General word; does not always suggest that the extra action is unnecessary.)
|
overlap (Suggests two people or processes are doing the same thing at the same time.)
対義語
streamline (Opposite because it removes extra or repeated work instead of creating it.)
コロケーション
duplicate efforts
|duplicate work
|duplicate data
|duplicate records
|avoid duplicating tasks
テーマ
business
|management
|technology
|core_vocabulary
|work
例文
- The new system will help us avoid duplicating work across departments.
- We are currently duplicating efforts, with two teams collecting the same data.
- Make sure you do not duplicate any entries in the database.
- The manager asked them not to duplicate each other's tasks.
- This function duplicates existing code instead of reusing it.
学習者向け例文
- Two teams duplicated the same work.
- Please do not duplicate this task.
- We want to save time by not duplicating jobs.
- The database duplicated some records by mistake.
- They duplicated the survey and asked the same questions again.
動詞
B2
action
4
achieve the same success again
To reach the same result or success again as before, or as another person or group.
用法パターン：
to duplicate [someone's/its] success/results
よくある間違い：
Learners may think this verb always means making a physical copy. In sports, business, and science, "duplicate" often means to reach the same result again, not to copy an object.
類義語
match (Emphasizes being equal in level or quality, not necessarily literally copying.)
|
recreate (Focuses on producing the same effect or experience again.)
対義語
fall short (Opposite because it means failing to reach the same level or result.)
コロケーション
duplicate last year's success
|duplicate the results
|duplicate the performance
|duplicate the achievement
|try to duplicate the feat
テーマ
sports
|business
|entertainment
|core_vocabulary
|work
例文
- The team hopes to duplicate last season's success.
- No other company has been able to duplicate their results.
- The sequel failed to duplicate the impact of the original movie.
- She is trying to duplicate the performance she gave in the finals.
- The experiment was carefully designed so other labs could duplicate the findings.
学習者向け例文
- The singer could not duplicate his early success.
- Our company wants to duplicate the results in other markets.
- The new book did not duplicate the first book's sales.
- They tried to duplicate the win from last year.
- Another group will try to duplicate the study.
unknown
B2
property
5
being an exact copy or extra
Exactly the same as another thing; a copy or extra of something.
用法パターン：
duplicate [noun]
よくある間違い：
Learners sometimes use "duplicated" before a noun instead of "duplicate" (e.g., *a duplicated key*). The normal form before a noun is "duplicate key," "duplicate copy," or "duplicate ticket."
類義語
identical (Very close in meaning; emphasizes that there is no difference at all.)
|
spare (Focuses on being an extra available to use, not just on being an exact copy.)
対義語
unique (Opposite because it means being the only one of its kind.)
コロケーション
duplicate key
|duplicate form
|duplicate payment
|duplicate entry
|duplicate ticket
テーマ
business
|law
|daily life
|core_vocabulary
例文
- You should leave a duplicate key with a neighbor in case of emergency.
- The system detected a duplicate entry in the customer database.
- Please destroy any duplicate copies of this confidential document.
- The bank charged me a duplicate fee by mistake.
- We issued duplicate tickets after the originals were lost.
学習者向け例文
- He always keeps a duplicate key at home.
- The form has two duplicate pages.
- The computer found a duplicate record.
- She paid a duplicate fee by accident.
- They printed a duplicate ticket for me.
文法
辞書形
duplicate
IPA
GB/dˈuplɪkɪt/
US/dˈuplɪkɪt/
音節・強勢
du - plic - ate （3音節）
Stress on 1st syllable (du)
活用形
Noun
- Base: duplicate
- Plural: duplicate, duplicates
Verb
- Base: duplicate
- 3rd Person Singular: duplicates
- Present Participle: duplicating
- Past: duplicated
関連語
Forms
duplicates
noun
duplicating
verb
duplicated
verb
Core family
duplication
noun B2
Related words
duplicator
noun
Advanced or less common
duplicative
adjective
deduplicate
verb
deduplication
noun
表現
in duplicate
1/ˈɪn dˈuplɪkɪt/
fixed phrase
formal
in two identical copies
In two copies that are exactly the same, usually for official papers.
例文
- Please submit the application in duplicate to the main office.
- The contract must be signed in duplicate and kept by both parties.
- All forms should be filed in duplicate for our records.