Adverb
1. 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"2. in accompaniment or as a companion;
"his little sister came along to the movies""I brought my camera along""working along with his father"3. to a more advanced state;
"the work is moving along""well along in their research""hurrying their education along""getting along in years"4. 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"5. 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"