bound adj.
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
VERBS be
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.
You can also check other dicts: bound (English, 中文解释 ), wordnet sense, Collins Definition