What does "air duct" mean?

A duct, through which air is forced or extracted, that forms part of a building's air conditioning and ventilation system.

What is a synonym for "air duct"?

Common synonyms include: air hole, air passage, air shaft, airway, blowhole, intake.

noun

noun ·Rare ·Advanced level

Noun

1
A duct, through which air is forced or extracted, that forms part of a building's air conditioning and ventilation system.
2
a duct that provides ventilation (as in mines) wordnet