o.b.o. abbr (especially AmE) (only used in written English) or best offer

used in small advertisements to say that the person selling sth will accept a price that is slightly lower than the one they are asking:

For Sale: digital camera, $150 obo.

⇨ O.N.O.

• injury
• ink
• inkjet printer
• inland
• Inland Revenue
• in-line
• innovate
• innovation
• innovative
• inoperative
• inorganic
• in-pack
• in-person
• in-plant
• input
• input/output
• input tax
• inquisitorial
• inquorate
• inroad
• insert
• in-service
• in-service withdrawal
• inset
• inside