These are word's grammars related to header. Click on any word to go to its word's detail page. Or, go to the definition of header.
Headers and tails are common in speaking, but very uncommon in writing. We use headers when we place information at the front of what we say. This can help our listeners to understand more easily what we are referring to. Headers can consist of a noun phrase or noun phrases or whole clauses. The header is followed by a pronoun (underlined in the examples) which refers back to the header:
