along

1 along /əˈlɑːŋ/ preposition
1 along
/əˈlɑːŋ/
preposition
Britannica Dictionary definition of ALONG
1 
: in a line matching the length or direction of (something)
2 
: at a point on (something)
2 along /əˈlɑːŋ/ adverb
2 along
/əˈlɑːŋ/
adverb
Britannica Dictionary definition of ALONG
1 
: in a forward direction
— often used figuratively
2 
— used to say that someone or something is brought or taken with you when you go somewhere
— often + with
3 
: at or to an advanced point
4 
: at a particular place : here or there
5 
: from one person to another

all along

: during the entire time since something began

along about

US, informal
: at a time near (a specified time) : about, around

along with

: in addition to (something or someone)
: together with (something or someone)