The difference between Leaf and Thumb
When used as nouns, leaf means the usually green and flat organ that represents the most prominent feature of most vegetative plants, whereas thumb means the short thick digit of the hand that for humans has the most mobility and can be made to oppose (moved to touch) all of the other fingers.
When used as verbs, leaf means to produce leaves, whereas thumb means to touch or cover with the thumb.
check bellow for the other definitions of Leaf and Thumb
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Leaf as a noun:
The usually green and flat organ that represents the most prominent feature of most vegetative plants.
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Leaf as a noun:
Anything resembling the leaf of a plant.
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Leaf as a noun:
A sheet of any substance beaten or rolled until very thin.
Examples:
"gold leaf'"
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Leaf as a noun:
A sheet of a book, magazine, etc (consisting of two pages, one on each face of the leaf).
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Leaf as a noun (in the plural):
Tea leaves.
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Leaf as a noun:
A flat section used to extend the size of a table.
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Leaf as a noun:
A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement.
Examples:
"The train car has one single-leaf and two double-leaf doors per side."
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Leaf as a noun (botany):
A foliage leaf or any of the many and often considerably different structures it can specialise into.
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Leaf as a noun (computing, mathematics):
In a tree, a node that has no descendants.
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Leaf as a noun:
The layer of fat supporting the kidneys of a pig, leaf fat.
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Leaf as a noun:
One of the teeth of a pinion, especially when small.
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Leaf as a verb (intransitive):
To produce leaves; put forth foliage.
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Leaf as a verb (transitive):
To divide (a vegetable) into separate leaves.
Examples:
"The lettuce in our burgers is 100% hand-leafed."
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Thumb as a noun:
The short thick digit of the hand that for humans has the most mobility and can be made to oppose (moved to touch) all of the other fingers.
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Thumb as a noun (computing):
The part of a slider that may be moved linearly along the slider.
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Thumb as a noun (colloquial, Internet):
A thumbnail picture.
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Thumb as a verb (transitive):
To touch or cover with the thumb.
Examples:
"to thumb the touch-hole of a cannon"
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Thumb as a verb (transitive, with '''through'''):
To turn the pages of (a book) in order to read it cursorily.
Examples:
"I thumbed through the book and decided not to bother reading it all."
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Thumb as a verb (travel):
To hitchhike
Examples:
"So I started thumbin' back east, toward my hometown."
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Thumb as a verb:
To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling.
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Thumb as a verb:
To manipulate (an object) with the thumb; especially, to pull back the hammer or open the cylinder of a revolver.
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Thumb as a verb:
To fire (a single action revolver) quickly by pulling the hammer while keeping the trigger depressed.