He works for a big newspaper.

He works alongside me

He works from morning to night

He works independently.

He works free-lance

He works to rule

a world of

a world of difference

It is a world full of surprises to anyone open to the challenge

World peace is disturbed.

world of make-believe

a world apart

a world in itself

a world of its own

to be worlds apart

worldwide

Worldwide, there are 500 operating theatres of this type in use

worm’s-eye view

to worm something out of somebody

to be worn out

worn with use

I'm worried about you.

to be worried that one has missed the boat

I am worried.

I'm worried.