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弟弟子に教える
otōto deko ni oshi eru
teach one's junior disciple
先輩は弟弟子に剣道の型を教えている。
The senior is teaching his junior disciple the forms of kendo.
formal
to teach someone who is a junior disciple or apprentice in the same tradition or lineage
師匠は弟子に加え、弟弟子にも技術を教え込んだ。
The master not only taught his disciples but also instilled techniques in his junior disciples.
Often used in contexts like martial arts, tea ceremony, or traditional arts where disciples are organized hierarchically.
Related Phrases
Pro Tip
Hierarchy in Japanese traditions
In traditional Japanese arts (e.g., martial arts, tea ceremony), the relationship between senior and junior disciples is formalized. Use 弟弟子に教える to emphasize the hierarchical teaching role, not just casual mentoring.
Gold Rule
Avoid in non-hierarchical contexts
This phrase is inappropriate in modern or non-traditional settings where hierarchy is not emphasized. Use 後輩に教える (teach a junior colleague) instead.
Word Origin
弟弟子 (otōto deko) is a compound noun meaning 'junior disciple' or 'younger apprentice in the same lineage,' formed from 弟 (otōto, younger brother/younger disciple) and 弟子 (deko, disciple/apprentice). The phrase literally means 'to teach a junior disciple.'
Usage Notes
This phrase is specific to hierarchical traditions where disciples are ranked by seniority. It implies a sense of responsibility or duty to mentor those who come after you in the lineage. Avoid using it in contexts where hierarchy is not relevant.
Word Breakdown
弟
younger brother / junior disciple
root弟子
disciple / apprentice
root和英辞典