Term: speleology: the pastime of exploring caves
Broader: avocation: an auxiliary activity | Unrelated: white willow: large willow tree of Eurasia and North Africa having greyish canescent leaves and grey bark
Broader: avocation: an auxiliary activity | Unrelated: common barberry: upright deciduous European shrub widely naturalized in United States having clusters of juicy berries
Broader: avocation: an auxiliary activity | Unrelated: collector's item: the outstanding item (the prize piece or main exhibit) in a collection
Broader: avocation: an auxiliary activity | Unrelated: transportation system: a facility consisting of the means and equipment necessary for the movement of passengers or goods
Broader: avocation: an auxiliary activity | Unrelated: upholstery: the craft of upholstering
Broader: avocation: an auxiliary activity | Unrelated: refinisher: a skilled worker who is employed to restore or refinish buildings or antique furniture
Broader: avocation: an auxiliary activity | Unrelated: stent: a slender tube inserted inside a tubular body part (as a blood vessel) to provide support during and after surgical anastomosis
Broader: avocation: an auxiliary activity | Unrelated: bank withdrawal: the withdrawal of money from your account at a bank
Broader: avocation: an auxiliary activity | Unrelated: cosecant: ratio of the hypotenuse to the opposite side of a right-angled triangle
Broader: avocation: an auxiliary activity | Unrelated: patent: a document granting an inventor sole rights to an invention