1. 估价员;（资产）评估师;估税员
An assessor is a person who is employed to calculate the value of something, or the amount of money that should be paid, for example in tax.

2. 专家;（尤指法庭的）陪审推事，顾问
An assessor is a person who is an expert in a subject, especially someone asked to advise a court of law on that subject.

3. （考试、面试、体育赛事等的）评分者，评委
An assessor is a person who judges the performance of someone else, for example in an exam, at an interview or at a sporting event.

1. an official who evaluates property for the purpose of taxing it

Synonym: tax assessor