Definitions

1. adverb

in or over the whole extent of; all the way from one end to the other; from beginning to end.

“The new policy will be implemented throughout the company by the end of the year.”

2. preposition

from one end to the other of; all the way from one point to another.

“She walked through the door and throughout the room, greeting everyone she met.”

3. noun

the extent or area over which something is spread or operates.

“The new policy covers the entire city, making it the most effective throughout the region.”