Term: catacomb: an underground tunnel with recesses where bodies were buried (as in ancient Rome)
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: aggravated assault: a reckless attack with intent to injure seriously (as with a deadly weapon)
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: resolving power: the ability of a microscope or telescope to measure the angular separation of images that are close together
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: pyrene: a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: menthol: a lotion containing menthol which gives it the smell of mint
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: imidazole: an organic base C3H4N2; a histamine inhibitor
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: per diem: a daily allowance for living expenses (especially while traveling in connection with your job)
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: nosewheel: a wheel located under the nose of an airplane that is part of the plane's landing gear
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: euarctos: American black bears; in some classifications not a separate genus from Ursus
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: oven: kitchen appliance used for baking or roasting
Broader: tunnel: a passageway through or under something, usually underground (especially one for trains or cars) | Unrelated: myocastor: a genus of Capromyidae