along

[uh-lawng, uh-long] /əˈlɔŋ, əˈlɒŋ/
preposition
1.
through, on, beside, over, or parallel to the length or direction of; from one end to the other of:
to walk along a highway; to run a border along a shelf.
2.
during; in the course of:
Somewhere along the way I lost my hat.
3.
in conformity or accordance with:
I plan to revise the article along the lines suggested.
adverb
4.
by the length; lengthwise; parallel to or in a line with the length or direction:
He ran along beside me.
5.
with a progressive motion; onward:
The police ordered the line to move along.
6.
(of time) some way on:
along toward evening.
7.
in company; in agreement (usually followed by with):
I'll go along with you. He planned the project along with his associates.
8.
as a companion; with one:
She took her brother along.
9.
from one person or place to another:
The order was passed along from the general to the captain and from the captain to a private.
10.
at or to an advanced place or state:
Work on the new ship is quite far along.
11.
as an accompanying item; on hand:
Bring along your umbrella.
12.
along of, Chiefly Southern U.S. and British Dialect.
  1. owing to; because of:
    We weren't invited, along of your rudeness.
  2. in company with:
    You come along of me to the store.
Verb phrases
13.
get along. get (def 36).
Idioms
14.
all along, all the time; throughout:
I knew all along that it was a lie.
15.
be along, Informal. to arrive at a place; come:
They should be along soon.
Origin
before 900; Middle English; Old English andlang, equivalent to and- (cognate with Old Saxon, Old Norse and-, Gothic and(a)-, Old High German ant-, prefix with orig. sense “facing”; cf. answer) + lang long1
British Dictionary definitions for along with

along

/əˈlɒŋ/
preposition
1.
over or for the length of, esp in a more or less horizontal plane: along the road
adverb
2.
continuing over the length of some specified thing
3.
in accompaniment; together with some specified person or people: he says he'd like to come along
4.
forward: the horse trotted along at a steady pace
5.
to a more advanced state: he got the work moving along
6.
along with, accompanying; together with: consider the advantages along with the disadvantages
Word Origin
Old English andlang, from and- against + langlong1; compare Old Frisian andlinga, Old Saxon antlang
Word Origin and History for along with

along

prep.

Old English andlang "entire, continuous; extended; all day long; alongside of," from and- "opposite, against" (from Proto-Germanic *andi-, *anda-, from PIE *anti "against," locative singular of *ant- "front, forehead;" see ante) + lang "long" (see long (adj.)). Sense extended to "through the whole length of."

Idioms and Phrases with along with

along with

.
In association with, as in For his second birthday we sent him a fireman's hat, along with some books, or The audience was invited to sing along with the star. [ Early 1700s ]
.
In conjunction with, as in Along with what I told you before, that's the whole story of what happened. [ Early 1800s ]
For a synonym, see go along, def. 2 and 3.