advocator
UK/ˈædvəkeitə/US/'ædvәkeitә/
C2
Definitions
n.
A person who supports or promotes a cause.
拥护者，提倡者
Root Breakdown
Root-derivedadvocateto, toward, near
+
-orvoice, call
=advocator
advocate + -or (one who) = one who advocates. Note: the everyday noun is simply "advocate"; advocator is rarer and more formal.
Example Sentences
- 1.
He was an early advocator of open-source software.