"Masses" is one version, as in "When worlds collide, masses often merge."
There is no plural. The word 'public' is a mass noun.
The word 'mucous' is an adjective, it has no plural form.The noun 'mucus' is an uncountable (mass) noun as a word for a substance.
Men at arms. The word 'arms' is a mass noun - and is already plural.
There is no plural form for mankind. The noun mankind is an uncountable (mass) noun, a word for all humans considered as a single group, a word for a concept.
No, the noun 'rain' is a singular, uncountable (mass) noun as a word for water drops falling from clouds; a word for percipitation.The plural noun 'rains' is a plural uncountable (mass) noun as a word specifically for seasons or periods of rain.
The noun 'refuse' is a mass (uncountable) noun with no plural form. The noun 'refuse' is a word for a something discarded, trash, rubbish, garbage; a word for a substance.
the singular term is TRIVIUM. Trivia is already in plural form
The noun 'food' is a mass (uncountable) noun as a word for a substance.The plural noun foods is a word for 'types of' or 'kinds of' food.
The noun 'rain' is a singular, uncountable (mass) noun as a word for water drops falling from clouds; a word for precipitation.The plural noun 'rains' is a plural, uncountable (mass) noun as a word specifically for seasons or periods of rain.
Nouns that have no plural form are called mass nouns, uncountable nouns, or non-count nouns.
The singular noun is mass. The plural form is masses.
The noun 'punctuation' is a mass noun (also called an uncountable noun), it has no plural form.The noun 'punctuation' is a type of aggregate noun, a word representing an indefinite number of elements.