a secret method of writing | a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc. |
a message written in a secret code | the distance between the rails of a railway or between the wheels of a train |
a person of no influence | the thickness of wire |
a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential | diameter of a tube or gun barrel |
a mathematical element that when added to another number yields the same number | accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared |