deep
/diːp/ IELTSAcademic
adjective
Deep describes something that goes far down from the top or surface. It can also describe a feeling, thought, or state that is strong and serious.
- The lake is very deep.
- She was in deep thought.
- They have a deep connection.
adverb
Deep means far in or far down. It is often used after verbs or in phrases.
- He went deep into the forest.
- The roots grow deep.
- Dig deep into the soil.
noun
The deep is a deep part of the sea, water, or a place. It can also mean a place that is far below the surface.
- Fish live in the deep.
- We swam in the deep.
- They disappeared into the deep.
Adinary Nuance
Deep is broader than words like "large" or "strong" because it can describe both physical distance downward and non-physical intensity. Use "deep" for water, sleep, thoughts, feelings, and relationships. It often sounds more natural than "very intense" in everyday English.
In other languages
- Vietnamese
- sâu
- Spanish
- profundo
- Chinese
- 深的
- Japanese
- 深い
- Korean
- 깊은
Etymology
Deep comes from Old English deop, from a Germanic root. It has been used in English since early times with the idea of great depth or intensity.
Common phrases
deep waterdeep sleepdeep thoughtdeep end
Synonyms
Related words
Frequently asked questions
- Is deep used more for physical or abstract meaning?
- Both. It can describe real distance downward and also strong feelings, thoughts, or seriousness.
- What's the difference between deep and profound?
- Deep is more common and natural in everyday English. Profound is more formal and often used for ideas, feelings, or meaning.
- Can I say deep understanding?
- Yes. It is a natural phrase and means very good or complete understanding.
- Is deep a common IELTS word?
- Yes. It is common in both speaking and writing, especially for descriptions and abstract ideas.