What does the title in the poem 'the road not taken' mean?

"The Road Not Taken" is one of America's most celebrated poems. The expression is most often used to express the different paths we take in life and in this case the one we do not choose. The narrator in the poem uses the expression that he has taken a different path and is usually viewed as a celebration of freedom and/or individual expression.

The poem is thought to address the concept bu taking one road or path in life means giving up and limiting other choices.

Wisegeek is a good site to look at for more information.

http://www.wisegeek.com/what-is-the-road-not-taken.htm