(sooner, soonest)
Frequency: The word is one of the 700 most common words in English.
1.
If something is going to happen soon, it will happen after a short time. If something happened soon after a particular time or event, it happened a short time after it.
You'll be hearing from us very soon...
This chance has come sooner than I expected...
The plane was returning to the airport soon after takeoff when it burst into flames...
Soon afterwards he separated from his wife.
ADV: ADV with v, ADV after n/cl, ADV afterwards
2.
If you say that something happens as soon as something else happens, you mean that it happens immediately after the other thing.
As soon as relations improve they will be allowed to go...
You'll never guess what happened as soon as I left my room.
PHRASE
3.
If you say that you would just as soon do something or you'd just as soon do it, you mean that you would prefer to do it.
These people could afford to retire to Florida but they'd just as soon stay put...
I'd just as soon not have to make this public...
I'd just as soon you put that thing away...
She'd just as soon throw your plate in your face as serve you.
PHRASE: MODAL inf, MODAL not inf, MODAL that, MODAL inf as inf