reference

reference — noun

1. an occasion when someone speaks or writes about a particular person, thing, or i

1.名詞B1
釋義

an occasion when someone speaks or writes about a particular person, thing, or idea, often briefly in the middle of discussing something else.

例句

Ryan made a brief reference to the accident during his speech.

collocation: make a reference to

The article contained several references to the city's early history.

collocation: contain references to

同義詞
  • mention

    less formal; used more in conversation than in writing

  • allusion

    suggests an indirect or subtle reference, not a direct one

  • comment

    focuses on expressing an opinion rather than simply naming something

2. a piece of text within a book or academic paper that tells the reader which earl

2.名詞B2
釋義

a piece of text within a book or academic paper that tells the reader which earlier work supplied a given fact, idea, or quotation.

例句

Each chapter in Vivek's thesis ended with a full list of references.

collocation: list of references

Sofie checked the reference at the bottom of the page to find the original study.

同義詞
  • citation

    more precise for an in-text credit; often used interchangeably in academic contexts

  • source

    broader — can mean the original work itself rather than the note that points to it

  • bibliography entry

    more formal; refers to the full listing at the end of a document

用法筆記

Commonly used in academic contexts. The plural form "references" often appears as a section heading at the end of a paper or book.

常見錯誤

I put the reference at the end of the sentence.
I put the citation at the end of the sentence.
💡'citation' is more natural for an in-text note; 'reference' usually refers to the full entry in the bibliography.

3. a number or code used on a letter, form, or package that helps people find relat

3.名詞B1
釋義

a number or code used on a letter, form, or package that helps people find related documents or quickly identify the subject being discussed.

例句

Please quote your customer reference number when you call.

collocation: reference number

The invoice arrived without a reference code, so the accounts team could not process it.

同義詞
  • code

    more general; a reference is a specific type of code used for identification

  • file number

    specifically for internal organisational records

用法筆記

Frequently used in formal correspondence and business administration. Often appears as "Ref:" at the top of a letter.

4. a letter or statement that a person familiar with your background provides to su

4.名詞B1
釋義

a letter or statement that a person familiar with your background provides to support your application for a job, a place at a school, or another opportunity.

例句

Tariq asked his former manager to write him a reference for the new job.

collocation: write someone a reference

Diya's university application included two references from her teachers.

collocation: include references

同義詞
  • recommendation

    slightly more informal; 'reference' is the standard term in British English

  • character reference

    specifically about personal qualities rather than professional skills

用法筆記

This sense can refer either to the letter itself or to the person who writes it. When someone is asked to be "a reference," they are agreeing to speak or write on your behalf.

常見錯誤

I need a reference letter from my teacher.
I need a reference from my teacher.
💡'reference' alone is enough; 'reference letter' is redundant but acceptable in informal use.

5. the act of consulting a book, map, timetable, or similar resource to locate a fa

5.名詞B2
釋義

the act of consulting a book, map, timetable, or similar resource to locate a fact or confirm a detail.

例句

Maeve kept a dictionary on her desk for easy reference while writing essays.

collocation: for easy reference

The manual is meant for quick reference and does not cover every situation.

collocation: quick reference

同義詞
  • consultation

    more formal; suggests a more thorough look rather than a quick check

  • look-up

    informal; used for checking a single fact in a reference work

用法筆記

Often appears in fixed phrases like "for reference," "for future reference," and "quick reference." These phrases typically describe a book or resource kept nearby for occasional checking.

reference — verb

reference — adjective