also: セッツルメント
noun
settlement work; social welfare activities
Refers to the practice of providing community-based social services, often by volunteers or non-profits, inspired by the settlement movement.
彼女は大学でセツルメント活動に参加している。
She participates in settlement work at her university.
noun
settlement house; community welfare center
A physical facility where settlement work is carried out; often a neighborhood center offering social services.
この地域には古くからあるセツルメントがまだ残っている。
An old settlement house still remains in this area.
ボランティア means volunteer or volunteering in general; セツルメント implies organized community-based welfare activities, often with a historical connection to the settlement movement.
From English 'settlement', referring to the settlement movement that began in late 19th-century Britain and the United States, where volunteers lived in poor urban areas to provide social services.