1. Possession or belonging:
* "The book of poems" - This means a book that contains poems.
* "The queen of England" - This refers to the person who is the ruler of England.
* "The color of the sky" - This describes the shade of the sky.
2. Part of a whole:
* "Half of the cake" - This indicates 50% of the cake.
* "Two out of three" - This means 2 items out of a group of 3.
* "A percentage of the population" - This refers to a portion of the total population.
3. Description or specification:
* "A man of great strength" - This describes a man who is very strong.
* "A city of ancient history" - This indicates a city with a long and rich history.
* "A cup of tea" - This specifies the type of drink.
4. Origin or source:
* "The book is of ancient origin" - This means the book comes from a long time ago.
* "The wood is of oak" - This states the material the wood is made of.
* "The song is of love" - This indicates the theme or subject of the song.
5. Relationship or connection:
* "The father of the bride" - This refers to the bride's father.
* "A friend of mine" - This means someone who is friendly with the speaker.
* "The history of the world" - This refers to the study of the past events of the world.
These are just some examples of how "of" can be used. Its exact meaning depends on the specific context in which it is used.
If you give me a specific sentence or phrase, I can help you understand the meaning of "of" in that context.