subject

Being in a position or in circumstances that place one under the power or authority of another or others.

Prone; disposed.

Likely to incur or receive; exposed.

Contingent or dependent.

One who is under the rule of another or others, especially one who owes allegiance to a government or ruler.

One concerning which something is said or done; a person or thing being discussed or dealt with.

Something that is treated or indicated in a work of art.

A theme of a composition, especially a fugue.

A course or area of study.