塞

Serbia / Serbian / abbr. for 塞爾維亞|塞尔维亚[Sai1 er3 wei2 ya4]

to stop up / to squeeze in / to stuff / cork / stopper

strategic pass / tactical border position

to stop up / to stuff / to cope with

(bound form) base; foundation / (bound form) radical (chemistry) / (bound form) gay (loanword from English into Cantonese, Jyutping: gei1, followed by orthographic borrowing from Cantonese)

"roof" radical (Kangxi radical 40), occurring in 家, 定, 安 etc, referred to as 寶蓋|宝盖[bao3 gai4]