绑定

绑定	bǎng dìng	(loanword) binding; to bind (e.g. an account to a mobile phone number)
绑	bǎng	to tie / bind or fasten together / to kidnap
定	dìng	to fix; to set; to make definite / to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc) / to congeal; to coagulate / (literary) definitely