Suffix -ity. Used to form a noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description. Used to form other nouns, especially abstract nouns. Usage notes . Many nouns formed with -ity are uncountable; those that are countable form their plurals in -ities.
Duncan Hazlett McGuire was an Australian musician, songwriter, recording engineer and producer. He was associated with vocalist, Doug Parkinson, in various groups during the 1960s and 1970s; McGuire was also a founding member of the jazz fusion band, Ayers Rock from 1973 until he left in 1976.
Gregory David Roberts: final interview on The Mountain Shadow by Shantaram author. Gregory David Roberts is the Australian-born writer of Shantaram (2003), a best-selling novel based on his experiences as a heroin addict and convicted bank robber who escaped from Melbourne's Pentridge Prison in 1980 and fled to India.