Meaning of rù:
入
to enter; to go into; to join; to become a member of; (bound form) to conform to (as in 入時|入时[ru4shi2])
Qǐng nǐ jìnlái, bùyào zhàn zài wàimiàn bù rù.
请你进来,不要站在外面不入。
Please come in, don't stand outside without entering.
Tā zhōngyú chénggōng rùxuǎnle zhège tuánduì.
他终于成功入选了这个团队。
He finally succeeded in being selected to join this team.
Tā zǒng shì gēnsuí cháoliú, xǐhuān chuānzhuó shímáo de yīfú yǐ rù shí.
他总是跟随潮流,喜欢穿着时髦的衣服以入时。
He always follows the trend and likes to wear fashionable clothes to keep up with the times.
abbr. for 入聲|入声[ru4sheng1]
Qǐng rù zuò.
请入座。
Please take a seat.
(on product packaging, after {number n} + {classifier}) containing (n pieces) (from Japanese 入 "iri")
Zhège hézi lǐ yǒu wǔ rù tángguǒ.
这个盒子里有五入糖果。
This box contains five candies.