debenture vs unsecured bond

debenture and unsecured bond both are nouns.

Word	Noun	Adjective	Verb	Adverb
debenture	Yes	No	No	No
unsecured bond	Yes	No	No	No

As nouns, debenture and unsecured bond are synonyms defined as:

debenture and unsecured bond: the ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future

Other synonyms of debenture include debenture bond.

debenture (noun)	unsecured bond (noun)
a certificate or voucher acknowledging a debt	the ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future
the ability of a customer to obtain goods or services before payment, based on the trust that payment will be made in the future