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Ob Oc Od Of Oi Ol Om On Op Or Os Ot Ou Ov Ow Ox
Obi Obj Obl Obs

Obligor

A term used in surety bonds to refer to the individual or firm bound by an obligation. Also known as the principal.
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Commonly called “principal,” one bound by an obligation. Under a bond, strictly speaking, both the principal and the surety are obligers.
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The person who has engaged to perform some obligation, one who makes a bond; the bonding company.
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UK: The person, also called the principal, giving the bond to the obligee. In a performance bond it is the contractor, i.e. the party bound under the bond.

Obsolescence

Impairment of desirability and usefulness brought about by changes in public preference or by forces in addition to those which cause deterioration.
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When something is no longer useful or has any value.

Obsolete parts clause

Clause applied by motor insurers when the subject-matter insured is a car no longer in production. The clause limits the liability of the own damage insurer for the cost of replacing any unobtainable part to the maker’s last list price plus the current cost of fitting.