1. We use ‘s to express a relationship between a person or organization and another person or thing.
- Mr. Blake’s secretary.
- Her husband’s car BA’s employees
- Volvo’s reputation
The ‘s very often means that the relationship can be expressed using have.
- Mr. Blake has a secretary.
- Volvo has a reputation.
2. When two nouns are used together, the first noun functions as an adjective and describes the second noun.
- A business card
- A job description
- An office complex
- A travel agency
Sometimes three or more nouns occur together.
- A company credit card (a credit card issued by a company)
- A management training programme (a training programme designed for management)
3. Two nouns are joined by of when the ideas are more abstract.
- The cost of living
- Independence of mind
- The joy of working and lifelong learning
4. Some compound nouns are written as one word.
5. When compound nouns are used with a number in expressions of measurement, the first noun is singular.
- A six-lane motorway
- A four-day week