[{"Bold_text": "noun", "List Items": ["an elongated depression between uplands, hills, or mountains, especially one following the course of a stream.", "an extensive, more or less flat, and relatively low region drained by a great river system.", "any depression or hollow resembling a valley.", "a low point or interval in any process, representation, or situation.", "any place, period, or situation that is filled with fear, gloom, foreboding, or the like:the valley of despair.", "Architecture.a depression or angle formed by the meeting of two inclined sides of a roof.", "the lower phase of a horizontal wave motion."]}]