1610s, agent noun from advise (v.). Meaning "military person sent to help a government or army in a foreign country" is recorded from 1915. Alternative form, Latinate advisor, is perhaps a back-formation from advisory.
实用例句
1. She refused to promote Colin above the low rank of "legal adviser".
她拒绝把科林由“法律顾问”这一低级别往上提。
来自柯林斯例句
2. If you are in any doubt, consult a financial adviser.
如有任何疑问，请向财务顾问咨询。
来自柯林斯例句
3. He was relieved of his duties as presidential adviser.
他被撤销了总统顾问一职。
来自柯林斯例句
4. He was their adviser, confidant and father confessor.
他是他们的顾问、密友和倾听者。
来自柯林斯例句
5. a special adviser to the President on education