2025 N400 37 Yes/No Questions & 90 Word Definitions - EASY What Mean for US Citizenship Interview 2025 This guide will help you quickly and efficiently memorize 37 yes/no questions and 90 word definitions, which are important aspects of the US citizenship test. Make sure you fully understand the yes/no questions, as the officer will ask them when reviewing your form, and also memorize the word definitions as much as you can.