Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Noun
S: (n) era, epoch (a period marked by distinctive character or reckoned from a fixed point or event)
S: (n) epoch, date of reference ((astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded)
S: (n) epoch (a unit of geological time that is a subdivision of a period and is itself divided into ages)