along

By the length of; in a line with the length of; lengthwise next to.

Water whished along the boat as we rowed upstream.

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

In a line with, with a progressive motion on; onward on; forward on.

The kine[…]went along the highway.

In the lightness of my heart I sang catches of songs as my horse gayly bore me along the well-remembered road.

In company; together.

John played the piano and everyone sang along.

From The Best of You to The Pretender, their own material invariably came equipped with huge choruses designed to be bellowed along to; they covered Another One Bites the Dust and Under Pressure; they gave every impression of being willing to play all night were it not for the curfew.

Onward, forward, with progressive action.

Don't stop here. Just move along.

I stumbled along through the young pines and huckleberry bushes. Pretty soon I struck into a sort of path that, I cal'lated, might lead to the road I was hunting for. It twisted and turned, and, the first thing I knew, made a sudden bend around a bunch of bayberry scrub and opened out into a big clear space like a lawn.