define
/dɪˈfaɪn/- 1.
To state the exact meaning of a word, phrase, or concept clearly and precisely. This is the most common use, especially in academic and educational contexts.
- The teacher asked students to define the word 'justice' in their own words.
- The report defines 'poverty' as earning less than two dollars a day.
- It is hard to define what makes good writing truly great.
- 2.
To mark or show the edges, shape, or limits of something. It can also mean to show the key qualities that make someone or something what it is.
- The river defines the natural border between the two regions.
- Her curiosity and drive define her as a researcher.
- Clear objectives help define the scope of any project.
Adinary Nuance
Define is sharper and more precise than its near-neighbors describe and explain. To describe something is to paint a picture of its features — how it looks, works, or feels. To explain is to walk someone through the reasoning or process behind something. But to define is to draw a firm boundary around a concept and say exactly what it is and what it is not. In academic writing, "define your terms" is a common instruction because define demands precision, not just general description. If you write "I will explain democracy" in an IELTS essay, you suggest you'll discuss how it works; "I will define democracy" signals you'll give a tight, authoritative meaning — a stronger academic move.
In other languages
- Vietnamese
- định nghĩa
- Spanish
- definir
- Chinese
- 定义
- Japanese
- 定義する
- Korean
- 정의하다
Etymology
From Latin "definire," meaning "to limit or determine," via Old French "definer." The word entered English in the late 14th century and has carried its core meaning of setting exact boundaries ever since.
Common phrases
Synonyms
Related words
Frequently asked questions
- What is the difference between 'define' and 'describe'?
- 'Define' gives a precise, bounded meaning — it tells you exactly what something is and is not. 'Describe' gives details about appearance, features, or qualities. In academic writing, 'define' is the stronger, more formal choice when introducing a key term.
- Is 'define' formal or can I use it in everyday speech?
- 'Define' is common in both formal and everyday English. You might say 'Can you define what you mean by that?' in a casual conversation. However, it appears most often in academic, professional, and educational contexts.
- How do I use 'define' in an IELTS essay?
- Use 'define' when you introduce a key term at the start of your essay — for example, 'Before discussing this issue, it is important to define the term...' This signals academic precision and scores well for coherence.
- Can 'define' be used for people and not just words?
- Yes. When used for people or things, 'define' means to capture their essential quality — for example, 'Resilience defines her as a leader.' This use is common in both spoken and written English.