sponsor-n; 2 Senses

Sense Number 1: person who is an official advocate

Commentary: SPONSOR[+person][+role][+advocate][+official]

Senator Smith is the sponsor of the new highway bill in congress.
You must have a sponsor to nominate you for membership at the yacht club.
Mary has been a sponsor of several immigrant families.

WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: person or organization that is a financial backer

Commentary: SPONSOR[+person][+role][+backer][+financial] [+organization][+role][+backer][+financial]

For only $100 you can become a sponsor of the orchestra.
We'll be back after a word from our sponsors.
Several local businesses are major sponsors of the annual charity drive.

WordNet 0.0 Sense Numbers: 1