along
preposition
°By the length; in a line with the length; lengthwise.
"They were waiting for me in the drawing-room, which is a very large room, stretching along the entire front of the house, with three long windows reaching down to the floor. — Doyle"
°In a line, or with a progressive motion; onward; forward.
"Swiftly and silently he made his way along the track which ran through the meadows. — Doyle"
verb
°In company; together.
"I am going to the store. Do you want to come along with me?"
°Onward, forward, with progressive action.
"Don't stop here. Just move along."