Things that modify nouns (adjective, or adjectival equivalent).

The very idea, all these collective nouns that we have been taught about nation, class, family.

It does n't distinguish between parts of speech, eg verbs and nouns are mixed up in the lists of words.

So we call this a piece of emotional engineering that uses up to the minute 17th century technology to turn nouns into verbs.

But appeasement is not one of the lessons. We will not make our free societies safe by bombing ISIS with strong nouns and weak verbs rather than high explosives.

To me, the meaning was clear when people search, they aren't just looking for nouns or information they are looking for action. They want to book a flight, reserve a table, buy a product, cure a hangover, take a class, fix a leak, resolve an argument, or occasionally find a person, for which Facebook is very handy.