A hitch used to draw a trailer with a car or a traction engine.

plural of traffic light

plural of trace fossil

The trading of emission allowances for carbon dioxide.

An instance of carbon emissions trading.

An assembly of meshed gears consisting of a central (sun) gear, a coaxial internal gear-wheel and one or more intermediate pinions supported on a revolving carrier.

A traffic light.

International trade without government interference, especially from tariffs or duties on imports.

Any individual piece of music, normally separated from the others by a short pause, on an LP, CD etc. / Any such piece that is perceived to be unsuitable for release as a single.

(business) A formula, practice, process, design, instrument, pattern, or compilation of information used by a business to obtain an advantage over competitors within the same industry or profession, which kept secret from those competitors or the public.