Meaning of ZERO in English

ZERO

[ 'zɪərəʊ ]

■ cardinal number ( plural ~s ) the figure 0; nought; nothing.

↘a point on a scale or instrument from which a positive or negative quantity is reckoned.

↘a temperature of 0°C (32°F), marking the freezing point of water.

↘the lowest possible amount or level; nothing at all.

↘ informal a worthless or insignificant person.

■ verb ( ~es , ~ing , ~ed )

1》 adjust (an instrument) to ~.

2》 set the sights of (a gun) for firing.

↘( ~ in on ) take aim at or focus attention on.

Origin

C17: from Fr. zéro or Ital. ~ , via Old Sp. from Arab. ṛifr 'cipher'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.