Why is that wind called typhoon when the wind speed is strong?

It is either a strong wind or a typhoon. First of all, what is a typhoon?

Typhoon is a strong tropical cyclone produced on the surface of tropical ocean. When the wind reaches 12, it is called a typhoon. What is said upstairs is wrong. In fact, hurricanes and typhoons are the same, but they are called differently. In the Pacific Ocean, this area is called a typhoon, while in the Indian Ocean, the Atlantic Ocean is called a hurricane.