"Modern kana usage", the method of using kana to write Japanese that has been used after the 1946 (post-war) Japanese national language reform. Unlike its predecessor, it is almost entirely phonetic, reflecting modern language with little ambiguity.

modern language / (especially in reference to Japanese) modern Japanese; Japanese in its current form, spoken since the Meiji era and based on the Tokyo dialect

Modern Greek - the Greek language as spoken since the 16th century