In fact, they are developing a whole new language for themselves.

The people living there developed their own language and culture.

The researchers had developed their own language for use among themselves, he knew.

But in the course of the last ten thousand years, we have developed written language.

Perhaps they didn't plan for it to happen, but the Winds seemed to have developed such a language.

"I began to see that one of the most useful things to do might be to develop a common language," she said.

There are a few different theories as to why and how children develop language.

The two develop a secret language and sing to each other.

We develop a common language so our base of knowledge is the same.

As children develop language, they speak similarly: when a child says "Water now!"