1 bound to do sth certain to do sth
VERBS be, seem
ADV. almost These problems were almost bound to arise.
2 bound (to do sth): obliged to do sth
VERBS be, feel | become | remain | hold sb The president said the country could not be held bound by a treaty signed by the previous regime.
ADJ. absolutely | irrevocably | by law, contractually, legally Officials are bound by law to investigate any possible fraud. He was legally bound to report them to the authorities. | (in) honour, in duty (also duty-bound), morally I felt in duty bound to report the incident.
PREP. by We are legally bound by this decision.
3 travelling in a particular direction
ADV. homeward, outward
PREP. for tourists who are bound for Europe
4 bound up: closely connected
VERBS be | become
ADV. closely, intimately | inevitably, inextricably | intrinsically | together A person's name and their sense of their own identity are often closely bound up together.
PREP. with From that moment my life became inextricably bound up with hers.