Dictionary
ruler
noun rul·er \ˈrü-lər\
: a person (such as a king or queen) who rules a country, area, group, etc.
: a straight piece of plastic, wood, or metal that has marks on it to show units of length and that is used to measure things
Full Definition of RULER
2
: a worker or a machine that rules paper
3
: a smooth-edged strip (as of wood or metal) that is usually marked off in units (as inches) and is used as a straightedge or for measuring
— rul·er·ship \-ˌship\ noun
See ruler defined for English-language learners
See ruler defined for kids
ADVERTISEMENT
First Known Use of RULER
14th century
RULER Defined for Kids
ruler
noun rul·er \ˈrü-lər\
Definition of RULER for Kids
1
: a person (as a king or queen) having supreme power over a nation
2
: a straight strip (as of plastic, wood, or metal) with a smooth edge that is marked off in units and used for measuring or as a guide in drawing straight lines
Learn More About RULER
Browse
Next Word in the Dictionary: rules committeePrevious Word in the Dictionary: rule outAll Words Near: ruler
ADVERTISEMENT
Seen & Heard
What made you want to look up ruler? Please tell us where you read or heard it (including the quote, if possible).