A person or organisation with some sort of responsibility for another person or organisation, especially where the responsibility has a religious, legal, or financial aspect.
"The church agreed to sponsor the new family fleeing the conflict so they could receive food and housing until their papers were sorted."
In plain English: A sponsor is someone who gives money or support to help an event, person, or cause succeed.
"The local car dealer was the main sponsor for the charity run."
Usage: As a noun, sponsor refers to an individual or organization that provides financial support or assumes responsibility for someone else's activities. This role is common in events like sports competitions but also applies formally to legal guardianship of minors under specific laws.
assume responsibility for or leadership of
"The senator announced that he would sponsor the health care plan"
To be a sponsor for.
"The local bakery agreed to sponsor our charity run by providing all the water bottles and medals for the runners."
In plain English: To sponsor means to pay for something or support someone so they can do it.
"The local company decided to sponsor the school's baseball team."
The word sponsor entered English as a learned borrowing from the Latin spōnsor, which originally meant a guarantor or someone who stands as a surety for another. In later usage, it specifically referred to a person acting as a godparent during a Christian baptism ceremony.