Definition of Of
Quick Meaning of Of
A preposition showing what something is made of or who owns it.
Detailed Definition of Of
Expressing belonging, composition, or relationship between things.
How to Pronounce Of
Stress pattern: o (1-syllable word).
Tip: Unstressed /əv/, stressed /ʌv/. Often shortened to schwa.
Origin and Etymology of Of
From Old English 'of' meaning away, off.
How to Use Of in a Sentence
Each example shows “of” with a CEFR level so learners can pick examples that match their fluency.
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“This is a cup of coffee.”
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“The author of the book is famous.”
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“The quality of education depends on many factors.”
Synonyms and Antonyms of Of
Common Synonyms for Of
Smart Synonyms for Of — When to Use Each
- belonging to
- shows possession or ownership
- made from
- shows material or composition
Common Collocations with Of
These phrases pair with “of” in everyday English:
- a cup of
- of course
- instead of
Common Mistakes When Using Of
Even fluent speakers slip up with “of”. Here’s how to avoid the most common errors:
- ✗ Wrong: I am interested of learning.
- ✓ Correct: I am interested in learning.
- Why: Use 'in' not 'of' after interested.
- ✗ Wrong: The color of house is white.
- ✓ Correct: The color of the house is white.
- Why: Need article 'the' after 'of' before noun.
Frequently Asked Questions About Of
What is the meaning of "Of"?
A preposition showing what something is made of or who owns it.
How do you pronounce "Of"?
The IPA is /əv/. Unstressed /əv/, stressed /ʌv/. Often shortened to schwa.
What part of speech is "Of"?
"Of" is a preposition at A1 level (Common European Framework).
What are synonyms for "Of"?
Common synonyms include belonging to, made from, part of.
How do you use "Of" in a sentence?
For example: "This is a cup of coffee."