as
In the way or to the degree that
Used to say how something happens or how much it happens.
[something] happens as [clause]
- Do as I say, not as I do.
- She sang as if no one was listening.
- As you know, the meeting has been postponed.
- Please do it as I showed you.
- He runs as fast as his brother.
- As we talked, it started to rain.
Because; since
Used to give the reason for something.
as [clause], [main clause]
- As it was getting late, we decided to leave.
- I didn’t call her, as I didn’t have her number.
- As you were out, I left a message.
- As it was dark, we went home.
- I stayed inside as it was cold.
- She went to bed early as she was tired.
In the role or function of
Used to say what job, role, or purpose someone or something has.
as [role/function]
- She works as a nurse.
- Think of it as a challenge.
- He served as president for four years.
- I work as a driver.
- He acts as my guide.
- She uses her phone as a camera.
To the same degree or amount
Used to say that two things are equal in some way.
as [adjective/adverb] as [something]
- He is as tall as his father.
- The test was not as hard as I expected.
- She can run as fast as you.
- My house is as big as yours.
- He is as smart as his sister.
- The car is not as new as mine.
- Base: as
- Plural: ases
as soon as
1Immediately after something happens
Right after something happens.
- Call me as soon as you arrive.
- I’ll let you know as soon as I finish.
as well as
1In addition to something
Also; in addition to.
- She plays the piano as well as the guitar.
- The job requires skill as well as experience.
as if
1In a way suggesting something unreal or imagined
In a way that makes it seem like something is true, even if it’s not.
- She talks as if she knows everything.
- He looks as if he hasn’t slept in days.
- He looked at me as if I were crazy.
- She talks to him as if he were a child.
as long as
1Only if; during the time that
Only if something happens, or during the time something happens.
- You can borrow my bike as long as you bring it back by tomorrow.
- As long as we keep working hard, we will succeed.
as long as
2Provided that; during the time that something lasts
If something happens; or during the time something happens.
- You can borrow it as long as you bring it back tomorrow.
- I’ll stay here as long as you need me.
as far as I know
1To the best of my knowledge
From what I know; based on my information.
- As far as I know, they are still together.
- As far as I know, there’s no meeting today.
as far as I know
2To my knowledge; based on what I know now
Based on what I know right now.
- As far as I know, she’s still in Paris.
- As far as I know, this is the last train.
as far as I know
3according to what I know now
You say this to show you are telling what you know, but it might not be complete or correct.
- As far as I know, they’re still together.
- As far as I know, the meeting is at 10.