possible

I UK [ˈpɒsəb(ə)l] / US [ˈpɑsəb(ə)l] adjective ***

1) if something is possible, it can be done

The task will not be possible without access to the Internet.

it is possible to do something:

It is possible to see as far as Corsica on a clear day.

make something possible:

a new technique that made it possible to perform this operation

if (at all) possible:

We need to avoid delay if at all possible.

a) something that is possible might happen in the future

A guilty verdict is always possible.

possible (that):

It is perfectly possible that humans might one day live on other planets.

b) likely or suitable in a particular situation or for a particular purpose

a possible explanation

a possible site for the new school building

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Collocations:
Adverbs frequently used with possible
▪  always, entirely, perfectly, quite

2) considered capable of happening, existing, being done, or being true, but not very likely

possible (that):

I suppose it's just possible she didn't know, but I'm sure I told her.

3) used with a superlative for emphasizing that something has the most or least of a particular quality

He arrived at the worst possible time.

Deb scored the highest score possible on the test.

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as soon/quickly/much etc as possible — as soon, as quickly, as much etc as you can

Get as much information as possible.

Hold your breath for as long as possible.

is it/would it be possible? — spoken used for asking politely if you can do something or have something

Would it be possible to have a look at your newspaper?

when/whenever/where/wherever possible — when or where you have an opportunity to do something

I relax with a good book whenever possible.

II UK [ˈpɒsəb(ə)l] / US [ˈpɑsəb(ə)l] noun [countable]
Word forms "possible":
singular possible plural possibles

someone or something that is considered a suitable choice for a particular job or situation

two possibles for the post