[ˈfɪltə], (Noun)

Definitions:
- a porous device for removing impurities or solid particles from a liquid or gas passed through it
(e.g: an oil filter)

- an arrangement whereby vehicles may turn left (or right) while other traffic waiting to go straight ahead or turn right (or left) is stopped by a red light
(e.g: a filter lane)


Phrases:
- have no filter

Origin:
late Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum ‘felt used as a filter’, of West Germanic origin and related to felt

[ˈfɪltə], (Verb)

Definitions:
- pass (a liquid, gas, light, or sound) through a device to remove unwanted material
(e.g: the eye filters out ultraviolet radiation)

- move slowly in a specified direction
(e.g: the players filtered out on to the pitch)


Phrases:
- have no filter

Origin:
late Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum ‘felt used as a filter’, of West Germanic origin and related to felt