1. One who assumes responsibility for another person or a group during a period of instruction, apprenticeship, or probation.
2. One who vouches for the suitability of a candidate for admission, as to an organization.
3. A legislator who proposes and urges adoption of a bill.
4. Christianity One who presents a candidate for baptism or confirmation; a godparent.
5. One that finances a project, event, or organization directed by another person or group, such as a business enterprise that pays for radio or television programming in return for advertising time.
tr.v. spon·sored, spon·sor·ing, spon·sors
To act as a sponsor for.
[Late Latin spōnsor, sponsor in baptism, from Latin, surety, from spōnsus, past participle of spondēre, to pledge; see spend- in the Appendix of Indo-European roots.]
spon·sori·al (-sôrē-əl) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.
American Heritage Dictionary Products
The American Heritage Dictionary, 5th Edition
The American Heritage Dictionary of Idioms
The American Heritage Roget's Thesaurus
Curious George's Dictionary
The American Heritage Children's Dictionary
The American Heritage Dictionary of Indo-European Roots
The American Heritage Student Grammar Dictionary
The American Heritage Desk Dictionary + Thesaurus
The American Heritage Science Dictionary
The American Heritage Dictionary of Business Terms
The American Heritage Student Dictionary
The American Heritage Essential Student Thesaurus