bargaining chip
US /ˈbɑːrɡənɪŋ tʃɪp/
UK /ˈbɑːrɡənɪŋ tʃɪp/

1.
交渉材料, 切り札
an item or concession that can be used to gain an advantage in negotiations
:
•
The release of the hostages became a crucial bargaining chip in the peace talks.
人質の解放は和平交渉における重要な交渉材料となった。
•
His extensive experience serves as a strong bargaining chip for a higher salary.
彼の豊富な経験は、より高い給与を得るための強力な交渉材料となる。