What are examples of singular special nouns?

Abstract nouns are sometimes referred to as special nouns. Abstract nouns are Words for things that can't be experienced by any of the five senses; they can't be seen, heard, smelled, tasted, or touched. Abstract nouns are things that are known, learned, understood, believed, or felt emotionally. Examples are:

• attitude
• behavior
• charm
• damage
• ego
• friendship
• gesture
• hope
• ignorance
• joke
• keepsake
• love
• moment
• notion
• opinion
• pride
• quest
• rule
• scandal
• trouble
• use
• value
• wish
• year
• zeal