단체협약이 · 단체협약을
collective agreement, collective bargaining agreement
Example
노사는 오랜 협상 끝에 단체협약을 맺었습니다.
Labor and management signed a collective agreement after long negotiations.
Word parts
단 group+체 body+협 cooperate+약 promise
단체 'group' + 협약 'agreement' — the contract that comes out of collective bargaining.
Good to know
Common verbs: 단체협약을 맺다 or 체결하다 'to sign a collective agreement.'