A noun is an abstract noun either based on its definition or based on the context in which it is used.
Abstract nouns:educationtroubleConcrete nouns: elevatortree
Some abstract nouns with M and A are:ambiguityanimositycamaraderiedemocracydramagrammarimaginationlimitationmagicmanners
Both love and hate are abstract nouns.
Some abstract nouns that end with the suffix 'dom' are:freedomwisdomboredomstardomSome abstract nouns that end with the suffix 'ship' are: friendshiprelationshipworshipcitizenship
Abstract nouns are sometimes called 'special nouns' or 'idea nouns'.
Idea nouns are abstract nouns, names for specific persons, places, things, or titles. Examples:agonybargaincheerdogmaeducationfungratitudehopeignorancejoyknowledgelovemadnessnatureorganizationpityquestionragestrengthtrust
Examples of abstract nouns that start with D are:dangerdaredestinydignitydiplomacydismissaldoomdramadreaddreamdrudgeryduty
The abstract nouns for these concrete nouns are:motherhoodpriesthoodfriendship
Examples of abstract nouns that begin with the letter 'u' are:ubiquityuglinessunderstandingunityunhappinessupheavalurgencyuseusefulnessusury
Some abstract nouns starting with M are:majoritymaladymarriagememorymercymomentMondaymoodmurdermystery
Both concrete and abstract nouns are words for things. Both concrete and abstract nouns can be singular or plural. Both concrete and abstract nouns can be common nouns or proper nouns. Both concrete and abstract nouns function in a sentence as the subject of the sentence or clause, and as the object of a verb or a preposition.
Abstract nouns means that ,lets say if it was abstract nouns the formula is i do not know.