年代

(1)an era of history having some distinctive feature; "we live in a litigious age"

(2)顕著な特徴を持っている歴史の時代

(3)the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred; "he tried to memorizes all the dates for his history class"

(4)ある出来事が起こった特定の日、月、または年（通常、グレゴリオ暦による）

(5)a period marked by distinctive character or reckoned from a fixed point or event

(6)顕著な特徴または固定された時点または出来事で認められる時代

(7)an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

(8)時間の量

(9)how long something has existed; "it was replaced because of its age"

(10)何かが、どれくらい存在したか

(1)