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  balma, caverna, gruta Höhle cavern   caverne   caverna, gruta
    Höhle antrum   antre antro, antrum antro
cadoz, covil, esconderijo, toca cau Bau, Höhle den, lair gordeleku, zulo antre, gisement, nid, tanière entobo cubil, encame, guarida, huronera, madriguera, manida, querencia
caverna, gruta, oca caverna, cova Höhle cave haitzulo, haizpe, harpe, hartzulo, koba, kobazulo, leize caverne, grotte cafurna, caverna, cova, espenuca, furna, gruta, pala, palafurna caverna, cueva, gruta