Definitions of forest:

• noun:   the trees and other plants in a large densely wooded area
• noun:   land that is covered with trees and shrubs
• verb:   establish a forest on previously unforested land

  Example: "Afforest the mountains"

• name:  A male given name (rare: 1 in 14285 males; popularity rank in the U.S.: #817)
• name:  A surname (rare: 1 in 33333 families; popularity rank in the U.S.: #4727)