Synonyms for All along:

adv

while (adverb)
meanwhile, up to, always, for now, for the time being, meantime, till, yet, During, in the meantime, throughout, up until, often, in the course of.

adv.

all (adverb)
right along.
while (adverb)
meanwhile, up to, always, for now, for the time being, meantime, till, yet, During, in the meantime, throughout, up until, often, in the course of.

n.

front end, opening, inaugural, from the get-go, new, early, initial, at first, original. all along (noun)
right along.

prep.

during (preposition)
meanwhile, for the time being, in the course of, throughout.

Other synonyms:

front end, inaugural. new, opening, initial. original. early. Other relevant words:
always, right along.