(US) A traffic light, between the green light and the red light, indicating that vehicles may proceed with caution. / (idiomatic) Hesitance to proceed; limited approval or permission to proceed.

plural of green light

Third-person singular simple present indicative form of green light

Alternative spelling of greenlight

(figuratively) A way of presenting or perceiving something such that it appears more favourably than by an alternative presentation or perception.

A bright blue flare prepared from nitre, sulphur, and the black sulphide of antimony; formerly used in signalling, but now chiefly as fireworks.

Alternative letter-case form of northern lights

(meteorology, nautical) A light wind with wind speed between 0.3 and 1.5 m/s; a Force 1 wind strength on the Beaufort scale.

(simile) extremely light, having minimal weight

The soft, greyish light characteristic of dawn or dusk