Headline Twist – A technique often used by comedians, whereby they lead users thought down one trail, only to reveal an unexpected punchline. In marketing, this can be either humorous or serious.
Hex / Hexadecimal – A numbering system which uses the numbers 0 – 9 and the letters A – F. This system is used to define colours for use on the web, pre-fixed with # to mark it a colour. #000000 is black, #ffffff is white.
HTML – Abbreviation of HyperText Markup Language. The fundamental coding used to develop web pages.
Hickey – A mark, blotch or other artefact left on a printed item. An error usually created by foreign matter affecting the print run.
Hyperlink (or Link) – A clickable element that directs the user to another web page, or part on the same page.