A colored, usually green, expansion growing from the side of
a stem or rootstock, in which the sap for the use of the plant is
elaborated under the influence of light; one of the parts of a plant
which collectively constitute its foliage.

A special organ of vegetation in the form of a lateral
outgrowth from the stem, whether appearing as a part of the foliage, or
as a cotyledon, a scale, a bract, a spine, or a tendril.

Something which is like a leaf in being wide and thin and
having a flat surface, or in being attached to a larger body by one
edge or end; as : (a) A part of a book or folded sheet containing two
pages upon its opposite sides. (b) A side, division, or part, that
slides or is hinged, as of window shutters, folding doors, etc. © The
movable side of a table. (d) A very thin plate; as, gold leaf. (e) A
portion of fat lying in a separate fold or layer. (f) One of the teeth
of a pinion, especially when small.

To shoot out leaves; to produce leaves; to leave; as, the
trees leaf in May.