As nouns the difference between subject and substanser
is that subject
) in a clause: the word or word group (usually a noun phrase) that is dealt with in active clauses with verbs denoting an action, the subject
and the actor are usually the same while substanser
As an adjective subject
is likely to be affected by or to experience something.
As a verb subject
is to cause (someone or something) to undergo a particular experience, especially one that is unpleasant or unwanted.