A conjunction used to join two or more items, meaning 'and' or 'as well as' (often used in written/formal contexts).
参加者並びに関係者の皆様にお礼申し上げます。
We thank all the participants as well as the related parties.
当社並びに協力会社が共同でプロジェクトを進めます。
Our company as well as partner firms will jointly advance the project.
本人並びにご家族の承諾が必要です。
Consent from the person and their family is required.