Point-man
noun
1.
the lead soldier of an infantry patrol on combat operations.
2.
a person who serves in the forefront, as of an economic or political issue.
noun (mainly US)
1.
(military) a soldier who walks at the front of an infantry patrol in combat
2.
the leader or spokesperson of a campaign or organization
n.
“one who leads a military patrol in formation in a jungle, etc.,” 1944, from point (n.) in military sense of “small leading party of an advance guard” (1580s) + man (n.).
noun
A person who plays a crucial, often hazardous role in the forefront of an enterprise; a person designated to take the lead in a project or task: point man on the new project
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