Here you will find one or more explanations in English for the word Header.
Also in the bottom left of the page several parts of wikipedia pages related to the word Header and, of course, Header synonyms and on the right images related to the word Header.
Header
Header Head"er, n.
1. One who, or that which, heads nails, rivets, etc., esp. a
machine for heading.
2. One who heads a movement, a party, or a mob; head; chief;
leader. [R.]
3. (Arch.)
(a) A brick or stone laid with its shorter face or head in
the surface of the wall.
(b) In framing, the piece of timber fitted between two
trimmers, and supported by them, and carrying the ends
of the tailpieces.
4. A reaper for wheat, that cuts off the heads only.
5. A fall or plunge headforemost, as while riding a bicycle,
or in bathing; as, to take a header. [Colloq.]
Meaning of Header from wikipedia