There are multiple definitions - click on the translation that matches your context.

上议员

名词

neolog

senator

noun

Definitions of senator

English

a member of a senate (=the upper house of a legislature; the administrative body of a university or other institution).

She is a former senator.

English

the term Senator (with a capital letter) is the title given to the member of a senate

The protests have been led by Senator John McCain.