nnoun.timea period marked by distinctive character or reckoned from a fixed point or eventSynset:epoch
Derivationally Related Form:epochal
Hypernyms:period period of time time period
Inherited Hypernyms:eratime periodfundamental quantitymeasureabstractionentity
Direct Hyponyms:agedayhistoric periodmodern era
Instance Hyponyms:Caliphate Christian era Common era
Full Hyponyms:antiquitydaygolden agehistoric periodinformation agejazz agemodern erareignturn of the century
nnoun.timea major division of geological time; an era is usually divided into two or more periodsSynset:geological era
Part Holonyms:aeon eon
Hypernyms:geologic time geological time
Inherited Hypernyms:erageological timetimeattributeabstractionentity
Instance Hyponyms:Age of Mammals Cenozoic Cenozoic era Age of Reptiles Mesozoic Mesozoic era Paleozoic Paleozoic era
Part Meronyms:geological period period
nnoun.communication(baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitchedTopic:ballbaseballbaseball game
Synset:ERA earned run average
Hypernyms:criterion measure standard touchstone
Inherited Hypernyms:earned run averagestandardsystem of measurementmeasureabstractionentity