A river that rises in the Rocky Mountains of northern Colorado and flows southwest for 1,468 miles (2,333 km) to the Gulf of California. It passes through the Grand Canyon..

season after winter and before summer, in which vegetation begins to appear, in northern hemisphere from March to May. Coils of metal that lessen impact, e.g. on cars. To lessen the impact of something under pressure.

(Of song, etc.) popular and famous for a long time. Something popular or famous for a long time.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

Being a very famous sports player, actor etc..

To grow something naturally.

To control the acting in a movie or play.

To make, cause, or bring into existence.

Touching or feeling something. People who can give you information, introductions. communicate with.

Manner of talking or behaving.

infiltrating substance or cells. To enter a group, place to get secret information.

having existed or done something for long time and therefore recognized and generally accepted. To use facts, evidence to show truth or clarity.

One more, but not this. One more added. additional person or thing of same type.

involving secret work within community or organization. Operating in disguise; incognito.