binding

Having legal or moral force; creating an obligation that must be honoured.

• bind/baɪnd/(v)约束；捆绑
• bound/baʊnd/(adj)有义务的

• legally binding
• binding agreement
• binding contract
• binding decision
• non-binding
• binding commitment

1. 1.The letter of intent is not legally binding, but it signals serious intent and sets the framework for formal negotiation.
2. 2.Once signed, the settlement agreement becomes binding on all parties and cannot be appealed.

• enforceable/ɪnˈfɔːsəbəl/— able to be enforced
• obligatory/əˈblɪɡətəri/— required by rule or law
• mandatory/ˈmændətəri/— compulsory

from Old English "bindan" (to tie)