I was wondering what if in all my kanjis, words, radicals, etc. I Type a synonym but in other language that is not english? My first language is spanish and i was thinking of doing that. But not sure if that would work out.
You can make your own user synonyms if you want. Simply press “+add synonym” on the learning item’s page or in the information page during reviews.
For example, 酸素 means oxygen, and is separated in 酸 (acid) and 素 (material). This is most likely taken from the Dutch (my native language) term for oxygen, which is “zuurstof” or literally translated “acid material”. This is probably no accident, as the Dutch used to trade scientific journals for wares with Japan, so terms might have been literally taken from those Dutch books. It is much easier for me to see the translation of zuurstof, rather than oxygen in this vocabulary, so I added zuurstof to the synonyms.
I think it is perfectly fine to do this, since it is more important to associate the correct concept with the learning items, rather than the exact precise perfect English term for it that you might not even know. However make sure that slight differences between two English terms translate over to your language before you generalise a meaning of two learning items.
In addition, I believe it’s easier to add synonyms on the mobile app than on the desktop. On the desktop version, I believe, you have to go to each kanji/vocab page to add the synonym. On the mobile version you can do it straight from within a review.