synchronic
adjective /sɪŋˈkrɒnɪk/
/sɪŋˈkrɑːnɪk/
(linguistics- relating to the way something, especially a language, is at a particular point in time
compare diachronic(语言)共时的 词源1920s: from late Latin synchronus (from Greek sunkhronos, from sun- ‘together’ + khronos ‘time’) + -ic.