'along' definitions:

With a forward motion; "we drove along admiring the view"; "the horse trotted along at a steady pace"; "the circus traveled on to the next city"; "move along"; "march on" [syn: along, on]

In accompaniment or as a companion; "his little sister came along to the movies"; "I brought my camera along"; "working along with his father"

To a more advanced state; "the work is moving along"; "well along in their research"; "hurrying their education along"; "getting along in years"

In addition (usually followed by `with'); "we sent them food and some clothing went along in the package"; "along with the package came a bill"; "consider the advantages along with the disadvantages"

In line with a length or direction (often followed by `by' or `beside'); "pass the word along"; "ran along beside me"; "cottages along by the river"