Two kinds of obligation referring to subject matter are legal obligations, which are enforceable by law and can result in penalties or consequences for non-compliance, and moral obligations, which are based on ethical principles or personal beliefs and may not have legal consequences but can impact one's reputation or relationships.
The subject-matter of phonetics.
The subject matter is what the book is about. So if you have a book on, say, Winston Churchill, he is the subject matter.
Subject matter is what an art work has been created about. For example if you were to have a painting of a cow, then the subject matter is a cow.
how do the paintings compare in terms of their subject matter
The subject in the poem "Does It Matter" by Siegfried Sassoon is "you."
The learner learns the subject matter
Sunday obligation refers to the expectation for Catholics to attend Mass on Sundays and certain holy days of obligation. It is considered a significant practice in the Catholic faith to observe the Lord's Day and participate in communal worship. Failure to fulfill the Sunday obligation without a valid reason is considered a serious matter in Catholic teaching.
A subject matter expert in the hazards or recovery activities underway within the incident site.
The subject matter is Dora Maar weeping.
Subject matter, theme, matter in hand, field, subject...
The subject matter is a dove of peace! It is a symbol for peace.
Iconography is the study of the subject matter of art.