1. A usually green, flattened, lateral structure attached to a stem and functioning as a principal organ of photosynthesis and transpiration in most plants.

2. A leaflike organ or structure.

3. a. Leaves considered as a group; foliage. b. The state or time of having or showing leaves: trees in full leaf.

4. The leaves of a plant used or processed for a specific purpose: large supplies of tobacco leaf.

5. Any of the sheets of paper bound in a book, each side of which constitutes a page.

6. A very thin sheet of material, especially metal: silver leaf.

7. A hinged or removable section for a table top.

8. A hinged or otherwise movable section of a folding door, shutter, or gate.

9. One of several metal strips forming a leaf spring.

1. To produce leaves; put forth foliage: trees just beginning to leaf.

2. To turn pages, as in searching or browsing: leafed through the catalog.