As a Noun: 1. In geometry, the measure of the distance from one side of an object to the other, the measure of the narrowness or broadness of something. English = width. Note: 1. In education (mathematics, geometry, etc.) this sign is used by some teachers specifically for ‘width’. If you search for ‘width’ in this dictionary you will see there are several other signs that are more commonly used in everyday life by Auslan signers to talk about this and related concepts (e.g., broad, wide) depending on the context.