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