Placed or situated under; lying below.

That substance or being which is conscious of its own operations: the agent.

Placed under the power of another.

The hero or main character of a narrative, story, or incident.

That of which anything is affirmed or predicated.

That in which any quality, attribute, or relation inheres: the substratum.

Exposed; liable; prone; disposed..

Obedient; submissive.

Something (a person, event, scene or object ) selected by an artist  for representation.