000

Symbol

 * The precision screwdriver set includes size 0, 00, and 000 Phillips head.
 * 0000 is meant for newborns but if your baby is not too small at birth, you can start with size 000 singlets.
 * 000 capsules are too large to swallow, but are used for medication to be mixed with a liquid.
 * 000 capsules are too large to swallow, but are used for medication to be mixed with a liquid.

Etymology
A variant of the British, originally selected as an appropriate number for rotary-dial telephones and adapted in Australia because of the need to dial an initial 0 from remote exchanges to connect to the main trunk lines.

Proper noun

 * 1) The telephone number for emergency services in Australia.

Usage notes
Australia also operates as an emergency number for the deaf and  as an emergency number for mobile phones.

Synonyms

 * ,, 000