The fur trade routes grew obsolete from the 1880s with the coming of railways and steamships.

But the only good in principles is that they grow obsolete.

It cost money to grow obsolete ever faster.

The rest of the piece is essentially disposable, because it will probably grow obsolete over time and have to be replaced.

"Animals, when their shells grow obsolete, they shed the shell and move on," he said.

But the ship grew obsolete as it aged, and larger, wider surveillance ships were built.

And that leaves some publishers worried over choosing a technology standard that will not suddenly grow obsolete or too expensive.

However, with the development of technology, the ancient craft grew obsolete.

It was a doctrine which had grown obsolete.

As of the late 20th century, this practice is growing obsolete.