Thanks, this is interesting too, though this project doesn't seem to decouple meanings from words, so automatic translations don't work with it (as far as I could see from my short snoop-around.)

I’m not sure what you mean with “decouple meanings from words”. Sure, lexemes themselves do not have DefinedMeaning entries like OmegaWiki does, but note this is a part of Wikidata, and lexeme senses are linked with main-namespace Wikidata items using the “item for this sense” (P5137) property. See e.g. https://www.wikidata.org/wiki/Lexeme:L10984 linking the “point of entry to an enclosed space” sense to https://www.wikidata.org/wiki/Q53060 and also to the corresponding lexemes in other language(s), in this case, https://www.wikidata.org/wiki/Lexeme:L406305#S1