Fear

-

To fear something

To be afraid

To be scared

You can fear many things

Death

Illness

Or to be abandon

You can also say many things to make sure people aren't afraid

Like,

Don't fear

Instead why can't we just say: don't worry

It's the same thing

From worry to anxious, there isn't much of a different

Worry could also mean annoy, disturb or bother

Somewhere, I find it a little amusing

Fear is kinda the same as worry, showing that you think about the situation or the person, something like that, if I'm not wrong

Worry can be the same as annoy, disturb or bother, a big different from fear

Have an uneasy feeling about or anticipation

Be anxious or concerned

So many words you can get from just fear

Fear

Worry

Anxious

Uneasy

Nervous

Tense

Concern

Anxiety

Angst

Sorrow

Grief

Pain

In simple words

Fear leads to pain