trust or confidence (in a person or institution); also the act of entrusting authority (e.g., a vote of confidence or letters of credence).
議会は首相に対する信任を問うための投票を行った。
Parliament held a vote to test its confidence in the prime minister.
大使は受け入れ国に信任状を提出した。
The ambassador presented his credentials to the receiving country.
部長の信任を得るために説明会を開いた。
We held a briefing to gain the manager's confidence.