What does "as long as" mean?

Used other than figuratively or idiomatically: see as, long.

What is a synonym for "as long as"?

Common synonyms include: as, as far as, at the same time, at which time, because, because.

conj, prep

conj, prep ·Rare ·Advanced level

Conjunction

1
Used other than figuratively or idiomatically: see as, long.
"It took three times as long as I expected (= three times longer than I did)."
2
Provided that, if, assuming (depending upon some condition or requirement). idiomatic
"I don't mind if he stays there, as long as he cleans up after himself when he's done."
3
For the entire duration that; while; since. idiomatic
"As long as you're here, you may as well help me with the garden."

Preposition

1
Used other than figuratively or idiomatically: see as, long.
"These meetings can last as long as three hours."

"It took three times as long as I expected (= three times longer than I did)."