over the length of or in a line parallel with (something)

walking along the road

in the course of (something)

along the way

Did you meet anyone along the way?

in accordance with (something)

along these lines

something along these lines

forward; on

Move along

as a companion or a necessary or pleasant addition; with one

Can I bring a friend along?

arriving at a particular place

I'll be along in five minutes

at or to a more advanced point or state

coming along well