The term measure word is also sometimes used to refer to numeral classifiers, which are used with count nouns in some languages.
For instance, in English no extra word is needed when saying "three people", but in many East Asian languages a numeral classifier is added, just as a measure word is added for uncountable nouns in English.
While many linguists maintain a distinction between measure words and numeral classifiers, the terms are sometimes used interchangeably.
In German, for example, ein Glas Bier means "a glass [of] beer".
However, the equivalent of the English of is common in Romance languages such as "a glass of beer": Classifiers play a similar role to measure words, except that measure words denote a particular quantity of something (a drop, a cupful, a pint, etc.