The noun catastrophes is the plural form of the noun catastrophe, both are common nouns.
The collective noun is a series of catastrophes.
The collective noun for a group of catastrophes is not widely established in the English language, as collective nouns are typically used for more common groupings of animals or objects. However, you might refer to a "series of catastrophes" or a "cluster of catastrophes" to convey multiple events occurring together. These phrases capture the idea of multiple catastrophic events happening in proximity or succession.
Common noun
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
Most definitely a common noun.
Camel is a common noun.
Th word tail is a common noun because the first letter of a proper noun is capitalized.
it is re@lly @ common noun
common
The noun cassette is a common noun.