Kinbaku (緊縛) is the word for "bondage". Kinbaku-bi which means "beautiful bondage", a form of sexual bondage which involves tying up the submissive using simple yet visually intricate patterns, usually with several pieces of thin rope. The word Shibari came in to common use in the west at some point in the 1990s to describe the bondage art Kinbaku.
Shibari (しばり), which literally means "to tie" or "to bind", differ from Western bondage in that, instead of just immobilizing or restraining the submissive, the submissive gains pleasure from being under the pressure and strain of the ropes, squeezing the breasts or genitals.