1appoint sb (to sth) to choose sb for a job or position 任命;委派:
The committee have appointed a new chairperson.委员会已委任了一个新主席。He's been appointed (as) assistant to Dr Beale.他已被委任为比尔博士的助理。
2 (formal 正式)appoint sth (for sth) to arrange or decide on sth 约定;确定