Welcome to the Financial Times Lexicon

Browse thousands of words and phrases selected by Financial Times editors and suggest new terms for the glossary.


Term of the day

white space

Unused parts of the airwaves previously reserved for television broadcasts are referred to as white space.

White space technology allows mobile broadband to be carried over unused, and unlicensed, broadcast frequencies, which could be used by smartphones and tablets as well as a range of business applications.

In effect, the technology fills in the gaps between the frequencies that are otherwise used to broadcast TV.

Just as the words on a page are separated by white space, which prevents the...