| 空窗期 | kōng chuāng qī | window period (time between infection and the appearance of detectable antibodies) / period during which sth is lacking (boyfriend or girlfriend, work, revenue, production of a commodity etc) / lull / hiatus | 
| 空 | kōng | empty / air / sky / in vain | 
| 空 | kòng | to empty / vacant / unoccupied / space / leisure / free time | 
| 窗 | chuāng | old variant of 窗 | 
| 窗 | chuāng | variant of 窗 | 
| 窗 | chuāng | variant of 窗 | 
| 窗 | chuāng | window / CL:扇 | 
| 窗 | chuāng | variant of 窗 | 
| 期 | qī | variant of 期 / period / cycle | 
| 期 | qī | a period of time / phase / stage / classifier for issues of a periodical, courses of study / time / term / period / to hope / Taiwan pr. [qi2] |