aisle, gangway - passageway between seating areas as in an auditorium or passenger vehicle or between areas of shelves of goods as in stores

arcade - a covered passageway; often between streets with shops or stalls

areaway - a passageway between buildings or giving access to a basement

corridor - an enclosed passageway; rooms usually open onto it

heading, drift, gallery - a horizontal (or nearly horizontal) passageway in a mine; "they dug a drift parallel with the vein"

gangway - a temporary passageway of planks (as over mud on a building site)

gate - passageway (as in an air terminal) where passengers can embark or disembark

passage - a way through or along which someone or something may pass

shaft - a vertical passageway through a building (as for an elevator)

tunnel - a passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection"

walk-through - a pedestrian passageway through the ground floor of a building

anatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical structure; "he has good bone structure"

birth canal - a passage in the uterus and vagina through which a fetus passes during vaginal birth

meatus - a natural body passageway

orifice, porta, opening - an aperture or hole opening into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"

duct, epithelial duct, canal, channel - a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"

sinusoid - tiny endothelium-lined passages for blood in the tissue of an organ

root canal - the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity

esophagus, gullet, oesophagus, gorge - the passage between the pharynx and the stomach

epicardia - the short part of the esophagus extending downward from the diaphragm to the stomach

fauces - the passage between the back of the mouth and the pharynx

sinus, fistula - an abnormal passage leading from a suppurating cavity to the body surface

shunt - a passage by which a bodily fluid (especially blood) is diverted from one channel to another; "an arteriovenus shunt"