Definition of apple
1
: the fleshy, usually rounded red, yellow, or green edible pome fruit of a usually cultivated tree (genus Malus) of the rose family
also
: an apple tree — compare crab apple
2
: a fruit (such as a star apple) or other vegetative growth (such as an oak apple) suggestive of an apple
apple of one's eye
: one that is highly cherished
his daughter is the apple of his eye
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Merriam-Webster unabridged
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Time Traveler for apple
The first known use of apple was before the 12th century
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