Definition of "along"

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

1892, Sir Arthur Conan Doyle, “The Adventure of the Copper Beeches”, in The Adventures of Sherlock Holmes‎, page 294

My hopes wa'n't disappointed. I never saw clams thicker than they was along them inshore flats. I filled my dreener in no time, and then it come to me that 'twouldn't be a bad idee to get a lot more, take 'em with me to Wellmouth, and peddle 'em out. Clams was fairly scarce over that side of the bay and ought to fetch a fair price.

1913, Joseph C. Lincoln, chapter 3, in Mr. Pratt's Patients

As we age, the major arteries of our bodies frequently become thickened with plaque, a fatty material with an oatmeal-like consistency that builds up along the inner lining of blood vessels.

2013 July-August, Stephen P. Lownie, David M. Pelz, “Stents to Prevent Stroke”, in American Scientist

The kine […] went along the highway.

1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Samuel 1 1-Chapter-6/#2 6:2

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

1852, Mrs M.A. Thompson, “The Tutor's Daughter”, in Graham's American Monthly Magazine of Literature, Art, and Fashion‎, page 266

Swiftly and silently he made his way along the track which ran through the meadows.

1892, Sir Arthur Conan Doyle, “The Boscombe Valley Mystery”, in The Adventures of Sherlock Holmes‎, page 93

We tiptoed into the house, up the stairs and along the hall into the room where the Professor had been spending so much of his time.

1913, Joseph C. Lincoln, chapter 13, in Mr. Pratt's Patients

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.

2017 June 26, Alexis Petridis, “Glastonbury 2017 verdict: Radiohead, Foo Fighters, Lorde, Stormzy and more”, in the Guardian‎

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.

1913, Joseph C. Lincoln, chapter 1, in Mr. Pratt's Patients