ねんだい年代nendai
1.

A division of time marked by the passage of years, typically associated with specific events or characteristics of that period.

2.

A specific interval in the chronological timeline, often used to categorize historical events or developments.

3.

The counting of years from a significant starting point, especially in historical or archaeological contexts.

4.

A group of individuals or a generation characterized by similar age, experiences, or cultural influences, reflecting shared societal traits or historical context.

Example:

1990年代は湾岸戦争で始まった。

どうねんだい同年代dounendai
1.

People who were born and came of age during the same time period, sharing similar cultural references and experiences.

2.

Individuals who belong to a specific age group, often facing comparable societal challenges or milestones during their lives.

Example:

私と同年代の人は皆これについて同じ考え方をする。

ねんだいじゅん年代順nendaijun
1.

A method of organizing events, dates, or items based on the sequence in which they occurred over time.

2.

The arrangement of historical occurrences or data in a linear fashion, where each element is placed according to its respective time period.

3.

A systematic categorization that emphasizes the progression of time, highlighting the relationships between events based on their occurrence from past to present.

ねんだいもの年代物nendaimono
1.

An item that has existed for a significant amount of time, thus acquiring value and often considered to have historical or cultural significance.

2.

An object that is distinguished by its age, typically regarded as having artistic merit or craftsmanship from a particular historical period.

3.

A collectible or prized possession that has aged, reflecting the qualities and styles of the era in which it was made, often appreciated by enthusiasts or connoisseurs.

4.

A piece of furniture, art, or another object that is esteemed for its historical context and the story it tells about the time in which it was created.