[ˈzɪərəʊ], (Numeral)

Definitions:
- no quantity or number; nought; the figure 0
(e.g: figures from zero to nine)


Phrases:

Origin:
early 17th century: from French zéro or Italian zero, via Old Spanish from Arabic ṣifr ‘cipher’

[ˈzɪərəʊ], (Verb)

Definitions:
- adjust (an instrument) to zero
(e.g: zero the counter when the tape has rewound)

- set the sights of (a gun) for firing
(e.g: the rifle had been zeroed at an elevation of 200)


Phrases:

Origin: