vug hole
11Mine exploration — This article is about visiting mines. For searching for minerals, see Mineral exploration. Mine exploration is a hobby in which people visit abandoned mines, quarries, and sometimes operational mines. Enthusiasts usually engage in such activities …
12alveolus — Synonyms and related words: alveolar ridge, alveolation, antrum, apex, armpit, arytenoid cartilages, back, basin, blade, bowl, cavity, concave, concavity, crater, crypt, cup, dent, depression, dimple, dint, dip, dorsum, fold, follicle, funnel… …
13basin — Synonyms and related words: alkali flat, alluvial plain, alveolation, alveolus, anchorage, anchorage ground, antrum, aquamanile, armpit, automatic dishwasher, bath, bathtub, bed, berth, bidet, bottom, bottomland, bowl, breakwater, bulkhead,… …
14bowl — Synonyms and related words: adobe, advance, agora, alveolation, alveolus, amphitheater, antrum, arena, armpit, athletic field, auditorium, background, basin, bear garden, biscuit, bisque, boxing ring, brick, bull ring, bunt, butt, campus, canvas …
15cavity — Synonyms and related words: abysm, abyss, alveolation, alveolus, antrum, aperture, armpit, arroyo, basin, booth, bowl, box, box canyon, breach, break, broaching, canyon, cell, cellule, chamber, chap, chasm, check, chimney, chink, clearing, cleft …
16concavity — Synonyms and related words: aduncity, alveolation, alveolus, antrum, aquilinity, arching, arcuation, armpit, basin, boss, bowl, bump, cavity, circularity, colophon, concameration, concave, convexity, convolution, crater, crookedness, crypt, cup,… …
17crater — Synonyms and related words: abysm, abyss, alveolation, alveolus, antrum, armpit, basin, birthmark, blackhead, bleb, blemish, blister, bowl, bulla, cavity, chasm, check, cicatrix, comedo, concave, concavity, crack, craze, crevasse, crypt, cup,… …
18crypt — Synonyms and related words: Easter sepulcher, alveolation, alveolus, ambry, antrum, apse, armpit, baptistery, barrow, basement, basin, beehive tomb, blindstory, bone house, booth, bowl, box, box grave, burial, burial chamber, burial mound,… …
19cup — Synonyms and related words: Friday, Friday the thirteenth, Old Mug, alveolation, alveolus, antrum, appointed lot, arch, armpit, astral influences, astrology, bail, barrow, basin, bays, beaker, blackjack, bleed, book of fate, boundary stone, bowl …
20depression — Synonyms and related words: Schmerz, Slough of Despond, abatement, abridgment, abstraction, abulia, aching heart, agony, agony of mind, alienation, alleviation, alveolation, alveolus, anguish, antrum, anxiety, anxiety equivalent, anxiety state,… …
