The following video demonstrates each syllable of the pinyin structure
and the exercise of pinyin/zhuyin with basic Chinese 4-tune pronunciation

Mandarin pinyin tunes
Click the framed calligraphic Chinese symbol icons
to link more related multi-character Chinese words!

ruī, ruí, ruǐ, ruì

second tune

ruí

flowers hanging down overladen with flowers 蕤 ruí

third tune

ruǐ

pistils of a flower stamens of a flower 蕊 ruǐ

flower pistils, stamens 花蕊 huā ruǐ
flower 花 huā	pistils, stamens 蕊 ruǐ

fourth tune

ruì

auspicious; propitious good omen; lucky; fortunate 瑞 ruì

sharp; acute; keen 銳 ruì

wise and clever perspicacious; profoundest 睿 ruì

sagacious; wise and farsighted keen discernment and judgement 睿智 ruì zhì
perspicacious 睿 ruì	wise 智 zhì

Chinese characters also pronunced ruì