noun🔗ShareA (usually rigid), flat, rectangular measuring or drawing device with graduations in units of measurement; a straightedge with markings."The students used their rulers to draw straight lines in their notebooks. "stationeryutensilmathdeviceChat with AIVocabulary GamePractice Reading
noun🔗ShareA person who rules or governs; someone or something that exercises dominion or controlling power over others."In ancient Egypt, the pharaohs were the rulers of the land. "politicsgovernmentroyalnationstatepersonChat with AIVocabulary GamePractice Reading
