Noun

• S: (n) astuteness, profundity, profoundness, depth, deepness (the intellectual ability to penetrate deeply into ideas)
• S: (n) deepness, profundity, profoundness (the quality of being physically deep) "the profundity of the mine was almost a mile"
• S: (n) depth, deepness (the extent downward or backward or inward) "the depth of the water"; "depth of a shelf"; "depth of a closet"
• S: (n) deepness (a low pitch that is loud and voluminous)
• direct hypernym / inherited hypernym / sister term
• S: (n) low pitch, low frequency (a pitch that is perceived as below other pitches)
• S: (n) pitch (the property of sound that varies with variation in the frequency of vibration)
• S: (n) sound property (an attribute of sound)
• S: (n) property (a basic or essential attribute shared by all members of a class) "a study of the physical properties of atomic particles"
• S: (n) attribute (an abstraction belonging to or characteristic of an entity)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form