Definition of "Along" :

adverb: with a forward motion

"We drove along admiring the view."

adverb: in accompaniment or as a companion

"His little sister came along to the movies."

adverb: in addition (usually followed by with')

"We sent them food and some clothing went along in the package."

adverb: to a more advanced state

"The work is moving along."

adverb: in line with a length or direction (often followed by by' or beside')

"Pass the word along."