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English definition of “leaf”

leaf

noun [C]  /lif/ (plural leaves  /livz/) us  

leaf noun [C] (PLANT)

any of the flat, usually green parts of a plant that are joined at one end to the stem or branch: By early November it’s getting cold and the trees are starting to lose their leaves.

leaf noun [C] (PAPER)

a thin flat substance, esp. a sheet of paper, or a layer of something: Some of the leaves of the old book had come loose. A leaf of a table is an extra flat piece that can be added to the top surface to make the table larger.
(Definition of leaf from the Cambridge Academic Content Dictionary © Cambridge University Press)
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