頃（ころ / ごろ）

About

ころ, or ごろ when used as a suffix, is used to refer to both approximate points in time, as well as more specific periods of time. ころ・ごろ cannot be used to approximate things other than time.

To use ころ・ごろ simply attach it to a time noun, adjective, or verb, or to a noun using the の particle.

E.g. 10時じごろ "around 10 o'clock"

E.g. 学生がくせいのころ "the time when one was a student"

Summary

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  ころ・ごろ is used to make time-based approximations

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  ころ・ごろ can be used for specific periods of time or approximate times

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  ころ・ごろ can attach to all parts of speech