adjective (no comparative or superlative forms)

1. relating to tides

noun

1. A wave, in the form of a wall of water, formed by an incoming tide funneling into an estuary

noun

1. A large and sudden rise and fall in the tide.
2. A large, sudden, and disastrous wave of water caused by a tremendous disturbance in the ocean; a tsunami. (See Usage notes below.)

1. • The last here killed twenty and left thousands homeless.
     1. (figurative) A sudden and powerful surge.
   • 2003, w:Michael Moore, Michael Moore, Dude, Where"s My Country, chapter 3
     
   • But this is no stream, folks. This will be a that can swamp our democracy.
     
   • As the doors opened, a of people flooded into the room.
     
   • I was overcome by a of emotions.
     1. (archaic) A crest of ocean water; a wave.
     2. (context, oceanography) A crest of ocean water resulting from tidal forces.

noun

1. An opening through which water may flow freely when the tide moves in one direction, but which closes automatically and prevents the water from flowing in the other direction.
2. (nautical) A place where the tide runs with great velocity, as through a gate.

noun

1. A table giving the time of when the tide will be high or low at a beach.

noun , also tide water

1. Water affected by the flow of the tide, especially tidal streams
2. The seaboard

noun

1. A long, narrow container, open on top, for feeding or watering animals.

One of Hank's chores was to slop the pigs' each morning and evening.

1. Any similarly shaped container.

Ernest threw his paint brushes into a kind of he had fashioned from sheet metal that he kept in the sink.

1. (Canadian) A gutter under the eaves of a building; eaves trough.

The troughs were filled with leaves and needed cleaning.

1. A short, narrow canal designed to hold water until it drains or evaporates.

There was a small that the sump pump emptied into; it was filled with mosquito larvae.

1. A long, narrow depression between waves or ridges.

The buoy bobbed between the crests and troughs of the waves moving across the bay.

The neurologist pointed to a troubling in the patter of his brain-waves.

1. (meteorology) A linear atmospheric depression associated with a weather front.
2. In Australia and New Zealand, a trough may refer to a rectangular container used for washing clothing, clothes, a channel for conveying water or other farm liquids (such as milk) from place to place by gravity, or any general 'U' or 'V' shaped channel conveying water for irrigation purposes.

noun (pl2=tsunami)

1. A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption.