as long as

10 synonyms for as long as, grouped by meaning and by how common each one is.

Conjunction — On the condition that; used to say that one thing will happen only if another thing is true.

Synonyms

Everyday swaps

Common words most readers know — safe in any writing.

providing if while since

Rare, literary or technical

Precise, but they will stand out — check the sense before using one.

provided that so long as on condition that for as long as seeing as given that

Synonyms by Meaning

1. conjunction

On the condition that; used to say that one thing will happen only if another thing is true.

“You can borrow the car as long as you fill it up.”

provided that providing so long as on condition that if

2. conjunction

During the whole time that; for the period that something continues.

“You are welcome to stay as long as you need to.”

while for as long as so long as

3. conjunction

Since, or given that; used to point out that a situation makes a course of action sensible.

“As long as you are up, could you put the kettle on?”

since seeing as given that

How to use as long as

The word patterns that sound natural to a native speaker.

as long as you like as long as possible as long as it takes just as long as

Neutral in all registers. So long as is slightly more formal and more common in British English.

Frequently asked questions

What is the difference between as long as and so long as?

They mean the same thing and are interchangeable in the conditional sense. So long as sounds a little more formal and is more common in British English, while as long as is the default everywhere and is the only form used for the time sense, as in 'stay as long as you like'.

Do you need a comma with as long as?

Use a comma when the clause comes first: 'As long as you are careful, you can use my tools.' No comma is needed when it comes second: 'You can use my tools as long as you are careful.'

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Nearby words

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