- blackness,
- freshness,
- smoothness,
- weight,
- height,
- length,
- depth,
- strength,
- health,
- honesty,
- beauty,
- liberty,
- eternity,
- satisfaction,
- precision,
- splendor,
- terror,
- disappointment,
- elegance,
- existence,
- grace,
- peace.
Many abstract nouns are derived from adjectives.
Examples:
- greenness (from green),
- depth (from deep),
- freedom (from free),
- wisdom (from wise),
- rotundity (from rotund),
- falsity or falseness (from false),
- bravery (from brave).
62. A collective noun is the name of a group, class, or multitude, and not of a single person, place, or thing.
Examples:
- crowd,
- group,
- legislature,
- squadron,
- sheaf,
- battalion,
- squad,
- Associated Press,
- Mediterranean Steamship Company,
- Senior Class,
- School Board.
The same noun may be abstract in one of its meanings, collective in another.
- They believe in fraternity. [Abstract.]
- The student joined a fraternity. [Collective.]
63. Abstract nouns are usually common, but become proper when the quality or idea is personified ([§ 60]).