圈缋 (圈繢) quānhuì

quānhuì noun a snare; a trap
Domain: Buddhism 佛教 , Subdomain: Chan School
Notes: For exampe, as mentioned in the No. 5 Koan in 碧巖錄 ”The Blue Cliff Record” (Ch’ung-hsien, K’o-ch’in, and Cleary 1998, p. 38; FGDB '圈繢'; T 2003, Scroll 1)