Grammar

1.70 being more specific

In order to refer to a more specific group of people, you can put a submodifier or another adjective in front of the headword. For more information about submodifiers, see paragraphs 2.145 to 2.173.

In this anecdote, Ray shows his affection for the very old and the very young.
...the highly educated.
...the urban poor.

If you mention two groups, you can sometimes omit 'the'.

...a study that compared the diets of rich and poor in several nations.
...to help break down the barriers between young and old.

With a few words such as 'unemployed' and 'dead', you can say how many people you are referring to by putting a number in front of them.

There are 3 million unemployed in this country.