X: other
Definition
The tag X is used for words that for some reason cannot be assigned
a real part-of-speech category.
Note: Version 1 of the Swedish UD treebank used X for foreign words (corresponding to the language-specific tag UO), but from version 1.1 these words are given a proper linguistic category and X is currently not used in Swedish. However, it still exists as a potentially permissible tag.
X in other languages: [bg] [cs] [de] [el] [en] [es] [eu] [fa] [fi] [fr] [ga] [he] [hu] [it] [ja] [ko] [sv] [u]