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1

leaf

play
noun, often attributive \ˈlēf\

Simple Definition of leaf

  • : one of the flat and typically green parts of a plant that grow from a stem or twig

  • : a sheet of paper in a book

  • : a part that can be added to or removed from a table to change the size of its top surface

Source: Merriam-Webster's Learner's Dictionary

Full Definition of leaf

plural leaves play \ˈlēvz\ also leafs play \ˈlēfs\

  1. 1 a (1) :  a lateral outgrowth from a plant stem that is typically a flattened expanded variably shaped greenish organ, constitutes a unit of the foliage, and functions primarily in food manufacture by photosynthesis (2) :  a modified leaf (as a bract or sepal) primarily engaged in functions other than food manufacture b (1) :  foliage <trees in full leaf> (2) :  the leaves of a plant as an article of commerce

  2. 2 :  something suggestive of a leaf: as a :  a part of a book or folded sheet containing a page on each side b (1) :  a part (as of window shutters, folding doors, or gates) that slides or is hinged (2) :  the movable parts of a table top c (1) :  a thin sheet or plate of any substance :  lamina (2) :  metal (as gold or silver) in sheets usually thinner than foil (3) :  one of the plates of a leaf spring

leafless play \ˈlēf-ləs\ adjective
leaflike play \ˈlēf-ˌlīk\ adjective

Examples of leaf in a sentence

  1. I heard the rustle of the autumn leaves.

  2. a pile of dead leaves

  3. The trees drop their leaves in the fall, and new leaves grow again in the spring.

  4. The trees have not yet come into leaf.



Illustration of leaf

Origin of leaf

Middle English leef, from Old English lēaf; akin to Old High German loub leaf


First Known Use: before 12th century

Rhymes with leaf


2

leaf

verb

Definition of leaf

  1. intransitive verb
  2. 1 :  to shoot out or produce leaves <will leaf out in spring>

  3. 2 :  to turn over pages especially to browse or skim <leaf through a book>

  4. transitive verb
  5. :  to turn over the pages of



Examples of leaf in a sentence

  1. <we must have spent hours leafing through wallpaper books before we found something we both liked>



1611

First Known Use of leaf

1611



LEAF Defined for Kids

1

leaf

play
noun \ˈlēf\

Definition of leaf for Students

plural leaves \ˈlēvz\

  1. 1 :  one of the usually flat green parts that grow from a plant stem and that functions mainly in making food by photosynthesis

  2. 2 :  foliage <The trees are in full leaf.>

  3. 3 :  a single sheet of a book containing a page on each side

  4. 4 :  a part that can be added to or removed from a table top

leafless \ˈlēf-ləs\ adjective
leaflike \ˈlēf-ˌlīk\ adjective



2

leaf

play
verb

Definition of leaf for Students

leafedleafing

  1. 1 :  to grow leaves <The trees will leaf out in the spring.>

  2. 2 :  to turn the pages of a book




Medical Dictionary

leaf

play
noun \ˈlēf\

Medical Definition of leaf

  1. :  a thin layer or sheet of tissue <the anterior leaf of the coronary ligament>





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