-ities

Suffix

-ity (noun-forming suffix, countable and uncountable, plural -ities)

1. Used to form an uncountable noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description.
   • absurd + -ity → absurdity (“the quality of being absurd or inconsistent with obvious truth, reason, or sound judgment”)
2. Used to form a countable noun from an adjective, referring to someone or something that conforms to the adjective's description.
   • absurd + -ity → [an] absurdity (“that which is absurd; an absurd action; a logical contradiction”)
3. Used to form other nouns, especially abstract nouns.