| 1. | a person who vouches or is responsible for a person or thing. |
| 2. | a person, firm, organization, etc., that finances and buys the time to broadcast a radio or television program so as to advertise a product, a political party, etc. |
| 3. | a person who makes a pledge or promise on behalf of another. |
| 4. | a person who answers for an infant at baptism, making the required professions and assuming responsibility for the child's religious upbringing; godfather or godmother. |
| 5. | to act as sponsor for; promise, vouch, or answer for. |
sponsor
An institutional investor or a brokerage firm that has a position in a security and influences other investors to establish a position in that security.
See underwriter.