Tárgyak, személyek, helyek stb. összehasonlítása abban az esetben, ha nincs köztük különbség. (olyan-mint) (To compare people, places, events or things, when there is no difference, use as + adjective + as 
- Peter is 24 years old. John is 24 years old. Peter is as old as John.
More examples:
- Moscow is as cold as St. Petersburg in the winter.
- Ramona is as happy as Raphael.
- Einstein is as famous as Darwin.
- A tiger is as dangerous as a lion.
