header

noun

head·​er ˈhe-dər 

1

: one that removes heads

especially : a grain-harvesting machine that cuts off the grain heads and elevates them to a wagon

2

a

: a brick or stone laid in a wall with its end toward the face of the wall

b

: a beam fitted at one side of an opening to support free ends of floor joists, studs, or rafters

c

: a horizontal structural or finish piece over an opening : lintel

d

: a conduit (such as an exhaust pipe for a many-cylindered engine) into which a number of smaller conduits open

e

: a mounting plate through which electrical terminals pass from a sealed device (such as a transistor)

3

informal : a fall or dive headfirst

took a header into the pool

4

: a shot or pass in soccer made by heading the ball

5

a

: head sense 15a(1)

b

: information (such as a page number) printed or placed at the top of each page of a document compare footer sense 2

Synonyms of header

• title
• caption
• heading
• headline

Examples of header in a Sentence

She tripped on the rock and took a header.

He scored with a header past the goalie.

Recent Examples on the Web

In an ideal world, according to Fabscrap, headers would be smaller than two yards, with no backing material, and a small sticker detailing material content and other descriptive elements, such as weight and country of origin, as required. — Bella Webb, Vogue, 8 Oct. 2026

On August 4, 2026, a federal appeals court issued the first federal appellate ruling on an AI agent, and the dispute turned on an HTTP header. — Michael Riedl, Forbes.com, 6 Oct. 2026

Following a corner kick taken by Messi, defender Nicolás Otamendi connected with a header to open the scoring in the 48th minute. — ABC News, 6 Oct. 2026

The most crucial stop came in the 62nd minute, when Greenville’s Louis Herrera delivered a dangerous header from the edge of the 6-yard box. — Idaho Statesman, 4 Oct. 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing header

• triple-header

Rhymes for header

• cheddar
• redder
• shredder
• spreader

Kids Definition

header

noun

head·​er ˈhed-ər 

: a fall or dive headfirst

took a header downstairs