bond, loan, debt
債 centers on a financial obligation: a debt, a loan, or a bond that must be repaid. All three meanings are different forms of the same idea of owing something.
債 combines 亻 (person) with 責, which likely contributes both sound and the idea of responsibility or obligation. Together they suggest a person bearing a debt.
A person 亻 beside 責 (responsibility) shows someone who owes a debt or must repay a loan.
For サイ, imagine a sighing debtor: sigh -> サイ, as the person 亻 sighs under the weight of 責 (debt).
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debt; loan
debt; liabilities; obligation to a person or party (usu. legal or contractual)
credit; claim
debt; liabilities
national debt; national securities; government bonds; government securities
bond; debenture
corporate bond; corporate debenture
public debt; public bond; government securities
issuing of bonds
foreign loan; foreign debt; foreign bond
Islamic bond; sukuk
inflation-indexed bonds; inflation-linked bonds
gilt-edged security; gilt-edged bond
consolidated annuities; consols
samurai bond; yen-denominated loan
junk bond; junk bonds
zero coupon loan
zero national debt
panda bond
Euro-yen bond