1. the office, mission, or work of an apostle
Usage: religious
2. the work of spreading religious faith or engaging in missionary activity
Usage: religious

Examples

• The priest dedicated his life to the apostolate of serving the poor.
• She felt called to an apostolate among the homeless.
• The missionary’s apostolate took him to remote villages.
• Their apostolate focused on education and healthcare.
• The nun’s apostolate involved teaching children in rural areas.
• He viewed his medical work as part of his apostolate.