ed

ed — 名詞

1. a short written form of 'education', used mostly as part of program and course t

1.名詞B1
釋義

教育

課程或學科名稱中的教育簡稱

a short written form of 'education', used mostly as part of program and course titles — for example, in phrases like 'adult ed' or 'continuing ed'.

例句

Bao signed up for an adult ed class to prepare for the citizenship test.

Bao 報名了一門成人教育課程，準備公民考試。

collocation: adult ed / continuing ed

The university offers a popular continuing ed certificate in digital marketing.

這所大學提供一個很受歡迎的數位行銷繼續教育證書課程。

文法句型

ed (uncountable noun) — usually in compound course names

用法筆記

This abbreviation appears almost exclusively as the second part of a compound course name (adult ed, special ed, continuing ed). It is not used as a standalone replacement for the full word 'education' in general writing.

常見錯誤

❌She has a degree in ed.
✅She has a degree in education.
💡'ed' by itself is only used within compound course names, not as a standalone noun.
❌The ed system needs reform.
✅The education system needs reform.
💡'ed' is not a general abbreviation for 'education' in academic or political contexts.

2. a short spoken or written form of 'editor', referring to a person who decides wh

2.名詞B1
釋義

編輯

報紙或雜誌編輯的非正式簡稱

a short spoken or written form of 'editor', referring to a person who decides what goes into a newspaper, magazine, or a section of one — used especially within the publishing industry or in informal workplace speech.

例句

Christopher, the city ed, approved the front-page story just before midnight.

Christopher（城市版編輯）在午夜前批准了頭版報導。

used as a job-title compound: city ed

Kasia landed a job as the fashion ed for a popular lifestyle magazine in Taipei.

Kasia 獲得了一份台北流行生活雜誌時尚編輯的工作。

同義詞
  • editor

    the full form, used in all registers; 'ed' is an informal shorthand

文法句型

ed (countable noun) — used as a job title

用法筆記

Used mostly as a job-title compound (city ed, fashion ed, sports ed) within media workplaces. In formal writing the full form 'editor' is preferred.

常見錯誤

❌The ed-in-chief made the final call.
✅The editor-in-chief made the final call.
💡'ed' is not used for 'editor-in-chief'; the full word is standard.

3. short for 'emergency department': a hospital unit that handles urgent medical ca

3.名詞B1
釋義

急診

醫院緊急部門的縮寫

short for 'emergency department': a hospital unit that handles urgent medical cases around the clock, without requiring advance booking.

例句

Paramedics rushed the injured cyclist to the ED at Queen Mary Hospital.

救護人員將受傷的自行車騎士緊急送往 Queen Mary 醫院的急診部。

preceded by 'the': the ED

The ED was unusually quiet on Tuesday night, with only three patients waiting.

星期二晚上急診部異常安靜，只有三位病人在等候。

同義詞
  • emergency room

    more common in American English; refers to the treatment area rather than the whole department

  • A&E

    British English equivalent; stands for 'accident and emergency'

文法句型

the ED (noun phrase) — often preceded by 'the'

用法筆記

In speech the abbreviation is pronounced as individual letters ('E-D'). In British English the equivalent term is 'A&E' (accident and emergency). In American English 'ER' (emergency room) is also common but refers more narrowly to the treatment room itself rather than the whole department.

常見錯誤

❌I went to the ED room.
✅I went to the ED.
💡'ED' already includes 'department'; adding 'room' is redundant.
❌The ED department is overcrowded.
✅The ED is overcrowded.
💡'ED' stands for 'emergency department', so 'ED department' repeats the word.

4. short for 'eating disorder': a psychiatric condition marked by severely unhealth

4.名詞B2
釋義

飲食障礙

進食行為失調的心理健康狀況

short for 'eating disorder': a psychiatric condition marked by severely unhealthy eating patterns — for example, eating too little, too much, or in a highly controlled way — often linked to emotional distress.

例句

Defne has received treatment for ED at a clinic for the past six months.

Defne 過去六個月一直在專科診所接受飲食障礙治療。

ED as an uncountable condition: treatment for ED

The documentary explored how social media can contribute to the development of ED in teenagers.

這部紀錄片探討了社群媒體如何可能導致青少年產生飲食障礙。

同義詞

文法句型

ED (noun) — used as an uncountable condition name or a countable diagnosis

用法筆記

In clinical and journalistic contexts the full term 'eating disorder' is preferred on first mention, with 'ED' used afterward. The abbreviation is pronounced as individual letters ('E-D').

常見錯誤

❌She has an ED.
✅She has been diagnosed with an eating disorder.
💡The abbreviation can sound dismissive or overly casual; the full term is more appropriate in sensitive discussions.

5. short for 'erectile dysfunction': a medical condition in which a man finds it di

5.名詞C1
釋義

勃起障礙

男性無法勃起或維持勃起的醫療狀況

short for 'erectile dysfunction': a medical condition in which a man finds it difficult to get or sustain an erection firm enough for sexual intercourse.

例句

After his check-up, Esteban discussed treatment options for his ED with the urologist.

身體檢查後，Esteban 與泌尿科醫師討論了他的勃起障礙治療方案。

ED as a medical condition: treatment options for ED

The advertisement listed several prescription drugs that claim to help men with ED.

那則廣告列出幾種號稱能幫助勃起障礙男性的處方藥。

同義詞

文法句型

ED (uncountable noun) — used as a medical condition name

用法筆記

In medical and pharmaceutical contexts this abbreviation is standard and widely recognized. In everyday conversation the full term 'erectile dysfunction' or simpler phrases ('trouble getting an erection') are more common.

常見錯誤

❌He suffers from an ED.
✅He suffers from ED.
💡'ED' is uncountable in this sense and does not take an article.

6. short for 'effective dose': the dosage of a medicine that achieves the intended

6.名詞C2
釋義

有效劑量

藥物產生預期效果的劑量

short for 'effective dose': the dosage of a medicine that achieves the intended therapeutic effect in a patient or during laboratory testing.

例句

The ED of the experimental drug was 50 mg per kilogram in clinical trials.

臨床試驗確定該實驗性化合物的有效劑量為每公斤體重 50 毫克。

ED qualified by a specific value: ED of 50 mg/kg

Researchers established the ED range for the new vaccine during the phase-two study.

研究人員在第二期試驗中確立了新款疫苗的有效劑量範圍。

同義詞
反義詞

文法句型

ED (noun) — usually qualified by a numeral or range

用法筆記

Almost exclusively used in pharmacology and clinical research writing. The abbreviation is often followed by a subscript number (ED50, ED90) indicating the percentage of the population that responds. Not used in general conversation.

7. a written abbreviation for 'editor' or 'edited', used in citations and bibliogra

7.名詞B2
釋義

編輯；編者

書目引用中表示編輯者的縮寫

a written abbreviation for 'editor' or 'edited', used in citations and bibliographies to indicate the person who prepared a book or text for publication — appearing before or after the editor's name.

例句

In the bibliography, 'Smith, J., ed.' means John Smith edited the collection of essays.

參考書目中「ed.」這個縮寫放在人名後面，代表該人是編輯者。

position: ed. after the name

Gita cited the handbook as 'Okafor, K., ed., *Guide to Urban Planning* (2022).'

Gita 在參考文獻中標明該手冊的編輯者為 Okafor K. 並加上「ed.」。

文法句型

ed. (abbreviation) — used in bibliographic citations

用法筆記

Always written with a period (ed.) in formal citations. The plural form is 'eds.' for two or more editors. In APA, MLA, and Chicago styles the abbreviation is standard in reference lists but the full form may be used in the main text.

常見錯誤

❌ed' without a period in a formal citation.
✅ed.
💡The period signals that it is an abbreviation.

❌ Using 'ed.' when there are multiple editors (should be 'eds.')

8. a written abbreviation for 'edition', used after a number (2nd, 3rd, etc.) in ci

8.名詞B2
釋義

版次

書目引用中表示版本的縮寫

a written abbreviation for 'edition', used after a number (2nd, 3rd, etc.) in citations and bibliographies to specify which version of a book or text is being referred to.

例句

The professor told students to use the 5th ed. of the handbook for their papers.

教授要求所有學生在研究報告中使用該手冊的第五版。

numeral + ed.: 5th ed.

Adina compared the first and second ed. of the dictionary to see changes.

Adina 比較了字典的第一版和第二版，看看條目內容有何變化。

文法句型

[number] + ed. (abbreviation) — used after a number to indicate a specific edition

用法筆記

Always written with a period (ed.) in formal citations. Unlike 'editor' (sense 7), 'edition' follows a number — '2nd ed.', 'rev. ed.' (revised edition). This distinction helps the reader tell the two abbreviations apart in a reference list.

常見錯誤

❌ed.' used for both 'editor' and 'edition' without context clues.
✅Use ordinal numbers before 'ed.' for edition ('3rd ed.') to avoid confusion.
❌ed' without a period.
✅ed.
💡The period is required in formal citations.