Subject

the subject matter of a conversation or discussion

something (a person or object or scene) selected by an artist or photographer for graphic representation

a branch of knowledge

some situation or event that is thought about

(grammar) one of the two main constituents of a sentence

a person who is subjected to experimental or other observational procedures

a person who owes allegiance to that nation

(logic) the first term of a proposition

cause to experience or suffer or make liable or vulnerable to

make accountable for

make subservient

possibly accepting or permitting

being under the power or sovereignty of another or others

likely to be affected by something