I have two parallel rulers in my drawing kit.

I bought a set of agate rulers for my art class.

She used an agate ruler to measure the length of the paper.

The rulership of the kingdom was passed down from father to son.

The rulerships of different countries vary in their governing styles.

The ruleress of the kingdom was known for her wise and just rule.

The ruleresses of the ancient kingdom were known for their wisdom and strength.