goodwill guide; volunteer interpreter
Refers to a person who voluntarily provides interpretation and guidance for foreign residents or tourists, often in community or disaster settings.
After the earthquake, many goodwill guides worked in the disaster area.
She guides foreign tourists as a volunteer interpreter.
通訳 is a general term for interpreter, while 善意通訳 specifically refers to a volunteer or goodwill interpreter.
ボランティア通訳 is a more common modern term for volunteer interpreter; 善意通訳 carries a nuance of goodwill and community spirit.
Compound of 善意 (goodwill) and 通訳 (interpretation). The term likely emerged in the context of volunteer interpretation services for foreign residents and tourists.