Green Light

Entertainment / Baseball / Green Light: Signal from the coach to hit the next good pitch, or a signal to a base runner that gives the runner the authority to decide when to attempt a steal.
Search Google for Green Light:

Other Words for Green

Green Adjective Synonyms: verdant, grassy, fresh, leafy, rural, country-like
MORE

Other Words for Light

Light Adjective Synonyms: ignite, set alight, set or put a match to, kindle, burn, touch off, set fire to, fire
Light Verb Synonyms: turn on, switch on, put on
Light Noun Synonyms: illumination, brightness, daylight, lamplight, candlelight, firelight, gaslight, torchlight, starlight, moonlight, sunlight, gegenschein, counterglow
MORE

Red Light

Entertainment / Ice Hockey / Red Light: A light behind the goal cage, next to the green light, that is turned on by the goal judge to indicate that a goal has been scored. MORE

Navigation Lights

Technology / Aviation / Navigation Lights: lights on the aircraft consisting of a red light on the left wing, a green light on the right wing, and a white light on the tail. FARs require that these lights be displayed in flight during the hour MORE

Goal Light

Entertainment / Ice Hockey / Goal Light: A light behind the goal cage, next to the green light, that is turned on by the goal judge to indicate that a goal has been scored. MORE

Lighten Up

Business / Finance / Lighten Up: Selling some part of a stock or bond position in a portfolio to realize capital gains or to losses or increase cash assets. MORE

Lighter-Than-Air Craft (LTAC)

Technology / Aviation / Lighter-Than-Air Craft (LTAC): Generally referring to powered blimps and dirigibles, but often also includes free balloons. MORE

Lightfast

Lifestyle / Painting / Lightfast: A pigments resistance to fading on long exposure to sunlight. Watercolors are rated lightfast on a scale of I-IV. I and II ratings are the most permanent. MORE