Word: 一号 (yīhào) Traditional: 一號 一号 dictionary entry yīhào first day of the month; toilet; top (in a homosexual relationship) Full dictionary entry for 一号 Example sentences using 一号 3 sentences, showing page 1 of 1. 新市长将在下个月一号就职。 Xīn shìzhǎng jiāng zài xiàgeyuè yíhào jiùzhí. The new mayor will take office on the first of next month. 这双凉鞋有点小，有大一号的吗？ Zhè shuāng liángxié yǒudiǎn xiǎo, yǒu dà yíhào de ma? These sandals are a bit small. Do you have one size bigger? 这项规定从下个月一号起施行。 Zhè xiàng guīdìng cóng xiàgeyuè yíhào qǐ shīxíng. This regulation takes effect from the first of next month.