The difference between Plurale tantum and Uncountable

When used as nouns, plurale tantum means a noun (in any specific sense) that has no singular form, such as (in most usage), whereas uncountable means an uncountable noun.


Uncountable is also adjective with the meaning: so many as to be incapable of being counted.

check bellow for the other definitions of Plurale tantum and Uncountable

  1. Plurale tantum as a noun (grammar):

    A noun (in any specific sense) that has no singular form, such as (in most usage).

    Examples:

    "Roger wasn’t sure whether “jeans” was a true plurale tantum, since the word “jean” exists and describes a type of cloth."

  1. Uncountable as an adjective:

    So many as to be incapable of being counted.

    Examples:

    "The reasons for our failure were as uncountable as the grains of sand on a beach."

  2. Uncountable as an adjective (mathematics):

    Incapable of being put into one-to-one correspondence with the natural numbers or any subset thereof.

    Examples:

    "Cantor’s “diagonal proof” shows that the set of real numbers is uncountable."

  3. Uncountable as an adjective (grammar, of a noun):

    Describes a meaning of a noun that cannot be used freely with numbers or the indefinite article, and which therefore usually takes no plural form. Example: information.

    Examples:

    "Many languages do not distinguish countable nouns from uncountable nouns."

    "One meaning in law of the supposedly uncountable noun "information" is used in the plural and is countable."

  1. Uncountable as a noun (linguistics):

    An uncountable noun.