Denshi Jisho — Online Japanese dictionary

Found 3 sentences.

三者凡退となった The three batters went out in quick.
あれ?恵子?」「今日三者面談から遅れるって "Eh? Where's Keiko?" "Said she's got a parent and child meeting so she'll be late."
三者解読試みてこの暗号解読することできない A potential third party would not be able to crack the code.