A person who rules or governs; someone or something that exercises dominion or controlling power over others.
A (usually rigid), flat, rectangular measuring or drawing device with graduations in units of measurement; a straightedge with markings.
To beat with a ruler (as a traditional school punishment).
A person ruled over by another, especially a monarch or state authority.
A being that has subjective experiences, subjective consciousness, or a relationship with another entity.
The variable in terms of which an expression is defined.
The main topic of a paper, work of art, discussion, field of study, etc.
The main theme or melody, especially in a fugue.
A particular area of study.
A citizen in a monarchy.
In a clause: the word or word group (usually a noun phrase) about whom the statement is made. In active clauses with verbs denoting an action, the subject and the actor are usually the same.
That of which something is stated.
An actor; one who takes action.
A human, animal or an inanimate object that is being examined, treated, analysed, etc.
To make subordinate or subservient; to subdue or enslave.
To cause (someone or something) to undergo a particular experience, especially one that is unpleasant or unwanted.
Placed or situated under; lying below, or in a lower situation.
Conditional upon something; used with to.
Likely to be affected by or to experience something.
Placed under the power of another; owing allegiance to a particular sovereign or state.