Definitions from Wiktionary (Trough)

▸ noun:  A long, narrow container, open on top, for feeding or watering animals.
▸ noun:  Any similarly shaped container.
▸ noun:  (Australia, New Zealand) A rectangular container used for washing or rinsing clothes.
▸ noun:  A short, narrow canal designed to hold water until it drains or evaporates.
▸ noun:  (colloquial) An undivided metal urinal (plumbing fixture)
▸ noun:  (Canada) A gutter under the eaves of a building; an eaves trough.
▸ noun:  (agriculture, Australia, New Zealand) A channel for conveying water or other farm liquids (such as milk) from place to place by gravity; any ‘U’ or ‘V’ cross-sectioned irrigation channel.
▸ noun:  A long, narrow depression between waves or ridges; the low portion of a wave cycle.
▸ noun:  (economics) A low turning point or a local minimum of a business cycle.
▸ noun:  (meteorology) A linear atmospheric depression associated with a weather front.
▸ verb:  To eat in a vulgar style, as if from a trough.
▸ noun:  Alternative letter-case form of trough [A long, narrow container, open on top, for feeding or watering animals.]
▸ Also see trough

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