a series of people or things that have some kind of relation
The Rocky Mountains, Andes Mountains, and so on were formed when large landmasses converged and pushed the land upwards.

to become visible
Good magicians can make people and objects appear and disappear right before your eyes.

a number of establishments, such as stores, theaters, hotels, etc., under common ownership or mangement
Jenna owns a chain of fast food restaurants on the East coast.

to bring together; to gather
David likes to collect CDs.

written matter intended to be reproduced in printed form
I sent her a copy of my new book.

an event or phenomenon not fully understood
The question of the origins of the universe is perhaps the greatest mystery for all humankind.

relating to one particular country
Every country has a national anthem.

a part
Does the restaurant have a non-smoking section?

all through
He remained calm throughout the whole wedding ceremony.

famous; talked about
Michael Jackson is a well-known celebrity.