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nouna path or channel or duct through or along which something may pass
Similar:
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nouna passage between rooms or between buildingstype of:
Synonyms & Similar Words
opening gate heading channel tunnel structure passage gallery corridor shaft canal drift aisle duct arcade gorge gangway sinus orifice porta esophagus gullet shunt fistula oesophagus meatus body structure complex body part anatomical structure bodily structure root canal sinusoid birth canal carpal tunnel epicardia epithelial duct fauces areaway walk-through