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, understood, believed, or felt emotionally. Examples are:
1.her attitude is bad.
2.happynes of others is my happiness too.
3.i fear god and not the devil.