big, considerable, great, main, major, serious
Paying the mortgage is a big worry for many people.
Her mother's poor health caused her considerable worry.
My greatest worry is that he'll do something stupid.

genuine, real
growing, increasing
slight
day-to-day
constant
The money side of things has been a constant worry.

unnecessary
She gave her parents unnecessary worry when she forgot to call them.

immediate
My immediate worry is money.

nagging, niggling
I had a nagging worry that we weren't going to get there.

secret
It was a relief to share my secret worries with him.

business, economic, financial, money
health

have
That year he had major health worries.

be beset by
She wanted to enjoy her retirement without being beset by financial worries.

be frantic with, be out of your mind with, be sick with
I didn't know where he was and I was frantic with worry.

express, voice
share
cause (sb), give sb
add to, increase
The fact that she heard nothing from him only increased her worry.

forget
Try and forget your worries for a little while.

alleviate, assuage, ease, soothe
remove, take away, take out of sth
Take the worry out of flying with our travel insurance offer.

dismiss
For years, the government has dismissed our worries as unfounded.

disappear, melt
prove groundless, prove unfounded
Most of Nigel's worries proved groundless.

plague sb
These worries plagued him constantly.

amid worries
The dollar has fallen to a new low amid worries that the American economy is heading for trouble.

worry about, worry over
They will not have worries over money.

worry to
His mother's health is an enormous worry to him.

cause for worry
There is no immediate cause for worry.

free from worry
have no worries on that score (BrE)
The staff all work very hard—we've no worries on that score.

the least of your worries
At the moment, the car is the least of my worries.

no worries! (esp. BrE)
No worries—there's plenty of time.

a source of worry
Money is a constant source of worry.

a lot, particularly, really, terribly
She worries a lot about crime.
What really worries me is what we do if there's nobody there.

slightly
excessively, needlessly, too much, unduly, unnecessarily
You do worry unnecessarily, you know.

not too much
Don't worry too much about it.

constantly

not let sth, not need to
Don't let it worry you unduly.

begin to
tell sb not to

about
Don't worry about me, I'll be fine.

for
We can't help worrying for your safety.

with
Don't worry the driver with unnecessary requests.

can't help worrying
I can't help worrying about the future.

enough to worry about, nothing to worry about
Don't bother Harry—he has enough to worry about as it is.

stop worrying
Stop worrying, Dad, we'll be fine.
How can I make her stop worrying so much?

worry yourself sick, worry yourself to death (both informal)

Worry is used with these nouns as the object:
investor