validation

在提交报告之前，我们需要进行数据验证。

Before submitting the report, we need to perform data ___validation.

你的护照需要官方验证才能用于国际旅行。

Your passport requires official ___validation for international travel.

朋友的支持给了我很大的安慰，让我感觉自己的情绪被理解了。

My friend's support gave me a sense of ___validation that my feelings were understood.