| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a scrap or morsel of food left at a meal. |
| officer of the day | |
| —n | |
| Also called: orderly officer a military officer whose duty is to take charge of the security of the unit or camp for a day | |
| Old Dutch | |
| —n | |
| See also Franconian OD the Dutch language up to about 1100, derived from the Low Franconian dialect of Old Low German | |
| ordinary seaman | |
| —n | |
| a seaman of the lowest rank, being insufficiently experienced to be an able-bodied seaman | |
o.d.
|