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One key. Four locks.

Thousands of words were borrowed from Chinese into Japanese, Korean and Vietnamese. Learn one written word and you can read it in all four languages.

Chinese characters
图书馆
圖書館Traditional · Taiwan, Hong Kong
library
school
Chinese
图书馆
túshūguǎn
Japanese
図書館
としょかん
Korean
도서관
Vietnamese
đồ thư quán
One source

The key on each card is the word every language in the family inherited or borrowed: a Chinese compound, a Latin noun, a Proto-Germanic root.

Many readings

Each language reshaped the word in its own way. Learn how one language changed it and you can often guess the rest.

1,300 words

Everyday words for school, work, travel, health and more, each checked by hand.

Practice them in Magentum

Hear each word spoken, then practice saying it.