synchrony
/ˈsɪŋkrənɪ/noun
mass noun
1
- simultaneous action, development, or occurrence同时行动; 同步发展; 同时发生。
1.1
- the state of operating or developing according to the same time scale as something else同时性：
some individuals do not remain in synchrony with the twenty-four-hour day.
有些人不与一天二十四小时的生活节奏同步。
2
- synchronic treatment or study同步治疗（学习）：
the structuralist distinction between synchrony and diachrony.
结构主义者对共时和历时的区分。
词源
mid 19th cent.: from Greek sunkhronos （see SYNCHRONOUS）.