[zɛst], (Noun)

Definitions:
- great enthusiasm and energy
(e.g: they campaigned with zest and intelligence)

- the outer coloured part of the peel of citrus fruit, used as flavouring
(e.g: add 3 tablespoons of lemon zest)


Phrases:

Origin:
late 17th century (in sense zest (sense 2 of the noun)): from French zeste ‘orange or lemon peel’, from obsolete zec ‘membrane around walnut kernel’, ‘object of no importance’

[zɛst], (Verb)

Definitions:
- scrape off the outer coloured part of the peel of (a piece of citrus fruit) for use as flavouring
(e.g: zest the orange and lemon, taking care to discard all of the white pith)


Phrases:

Origin: