1

tide

play
noun \ˈtīd\

Definition of tide

  1. 1a (1) :  the alternate rising and falling of the surface of the ocean and of water bodies (such as gulfs and bays) connected with the ocean that occurs usually twice a day and is the result of differing gravitational forces exerted at different parts of the earth by another body (such as the moon or sun) (2) :  a less marked rising and falling of an inland body of water (3) :  a periodic movement in the earth's crust caused by the same forces that produce ocean tides (4) :  a periodic distortion on one celestial body caused by the gravitational attraction of another (5) :  one of the periodic movements of the atmosphere resembling those of the ocean and produced by gravitation or diurnal temperature changesb :  flood tide 1

  2. 2a :  something that fluctuates like the tides of the sea the tide of public opinionb :  a large and increasing quantity or volume a tide of opportunists a swelling tide of criticism

  3. 3a :  a flowing stream :  currentb :  the waters of the oceanc :  the overflow of a flooding stream

  4. 4a :  a fit or opportune time :  opportunityb :  an ecclesiastical anniversary or festival; also :  its season —usually used in combination Eastertidec obsolete :  a space of time :  period

tideless

play \-ləs\ adjective

Examples of tide in a Sentence

  1. a chart of the tides

  2. The boat got swept away in the tide.

Recent Examples of tide from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tide'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of tide

Middle English, time, from Old English tīd; akin to Old High German zīt time and perhaps to Greek daiesthai to divide

Other Oceanography Terms


2

tide

verb

Definition of tide

tided

;

tiding

  1. intransitive verb
  2. :  to flow as or in a tide :  surge

  3. transitive verb
  4. :  to cause to float with or as if with the tide

Recent Examples of tide from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tide'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tide

1593


3

tide

verb

Definition of tide

tided

;

tiding

archaic

  1. intransitive verb
  2. :  betide, befall

Recent Examples of tide from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tide'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of tide

Middle English, from Old English tīdan; akin to Middle Dutch tiden to go, come, Old English tīd time



TIDE Defined for English Language Learners

tide

play
noun

Definition of tide for English Language Learners

  • : the regular upward and downward movement of the level of the ocean that is caused by the pull of the Sun and the Moon on the Earth

  • : the flow of the ocean's water as the tide rises or falls

  • : the way in which something is changing or developing


TIDE Defined for Kids

1

tide

play
noun \ˈtīd\

Definition of tide for Students

  1. 1 :  the rising and falling of the surface of the ocean caused twice daily by the attraction of the sun and the moon

  2. 2 :  something that rises and falls or rushes in a mass The tide of public opinion often changes.

History for tide

The English word tide at first meant “time” or “a space of time.” Later the word was used for the space of time between the rising and falling of the sea's surface. Then tide came to mean “the rising and falling of the sea.” This is the most common meaning of the word today.


2

tide

play
verb

Definition of tide for Students

tided

;

tiding

  1. :  to help to overcome or put up with a difficulty A snack will tide me over until dinner.


Medical Dictionary

tide

play
noun \ˈtīd\

Medical Definition of tide

  1. :  a temporary increase or decrease in a specified substance or quality in the body or one of its systems a postprandial alkaline tide, the typical rise in urinary pH associated with gastric acid secretion—E. J. Jacobson & Gerhard Fuchs



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