a round fruit with red or green skin and crisp white flesh
any of a genus of trees of the rose family that bear this fruit: genus Malus
a fruit or other plant structure resembling an apple
crab apples
an oak apple
she's apples
Aus, informal everything's fine
the apple of one's eye
somebody or something greatly cherished
[originally the pupil of the eye (once believed to be a solid ball), and hence something precious and delicate. In Shakespeare's A Midsummer Night's Dream (III.ii.104) Oberon squeezes magic juice into the eye of the lover Demetrius with the words ‘Flower of this purple dye, | Hit with Cupid's archery, | Sink in apple of his eye’.]upset the apple cart
to ruin a scheme or plan
[Old English æppel]