1. The finishing or fulfillment of aid, support, or help provided to someone or something
The assistance completion was confirmed after all required documents were submitted.
A conclusão da assistência foi confirmada após a apresentação de todos os documentos necessários.
2. The state of having finished rendering assistance or support services
We celebrated the assistance completion of the relief project in the disaster area.
Celebramos a conclusão da assistência do projeto de alívio na área do desastre.