The research aims to explore the Chinese character “jì (既)” in pre-Qin period. The research focuses on the font change of jì (既) in pre-Qin period. Throughout the discussion, the understanding of jì (既), including of different fonts, such as , , can be known. We can know that the pronunciation of jì (既) has a close relationship with qì (氣), according to the use of related characters, for example, ài (㤅), jì (䊠), xì (餼) and so on. Talking about the meaning, there are seven meanings of jì (既), such as finish eating, end, whole, already, since, jì ér (既而, soon afterwards), jì yǐ (既以, farther), xì (餼, foodstuff). The results will be beneficial to facilitate understanding of academic writing materials and expand Warring States research in other aspects.

1. 前 言
 2. “既”字形演變
 3. “既” 字用法 
  3.1 表示食畢的意思 
  3.2 表示完盡、結束一類的意思
  3.3 表示全部、都一類的意思
  3.4 表示已經、既然一類的意思
  3.5 複合詞 “既已 ”，表示先後完成或並列發生
  3.6 複合詞 “既而 ”，表示發生時間，近  “後來 ”
  3.7 通讀 爲“餼”
 4. 小 結

• 呂佩珊(臺灣慈濟科技大學)