to give money to a sports event, theatre, institution etc, especially in exchange for the right to advertise:
The competition was sponsored by British Airways.
to support someone by paying for their training, education, living costs etc:
The bank had offered to sponsor him at university.
to officially support a proposal for a new law
to agree to help someone or be responsible for what they do
to agree to give someone money for charity if they walk, run etc a particular distance
5 British English
an event in which many people walk, swim etc a particular distance so that people will give them money for a charity
supported and encouraged by the UN, the US etc:
US-sponsored peace talks