give for charity
賙 centers on giving material help to those in need, specifically charitable giving. The single meaning "give for charity" captures the act of providing money or goods as aid.
賙 combines 貝 (shell, money) with 周, which likely contributes the sound. The structure suggests giving money or valuables, fitting the charitable meaning.
The left side 貝 represents money or valuables, and the right side 周 suggests surrounding or encompassing. Picture someone distributing money all around to those in need: giving for charity.
For シュウ, imagine a charity event where people shout "SHOE!" as they donate shoes to the needy: shoe -> シュウ, and the giving is for charity.