1.
binding, tying up
The physical act of binding or tying something or someone.
2.
restriction, constraint, rule, limitation
A rule or condition that limits what one can do. Very common in gaming contexts for self-imposed challenges, and in business for contractual restrictions.
Usage
The figurative sense (restriction, constraint) is extremely common in modern Japanese. In gaming culture, 縛りプレイ refers to a self-imposed challenge run where the player adds extra restrictions. In everyday use, it often refers to contractual or regulatory restrictions.
Forms
Noun form of the verb 縛る (to bind, to tie).