Also found in: Dictionary, Thesaurus, Medical, Legal, Idioms, Wikipedia.
Related to third: third base, third trimester


1. coming after the second and preceding the fourth in numbering or counting order, position, time, etc.; being the ordinal number of three: often written 3rd
2. denoting the third from lowest forward ratio of a gearbox in a motor vehicle
a. one of three equal or nearly equal parts of an object, quantity, etc.
b. (as modifier): a third part
4. the fraction equal to one divided by three (1/3)
5. the forward ratio above second of a gearbox in a motor vehicle. In some vehicles it is the top gear
a. the interval between one note and another three notes away from it counting inclusively along the diatonic scale
b. one of two notes constituting such an interval in relation to the other
7. Brit an honours degree of the third and usually the lowest class
8. goods of a standard lower than that of seconds



a unit of time equal to 1/60 of a second. The unit is seldom used. In modern physics, small intervals of time are usually expressed in decimal fractions of a second: milliseconds (10–3sec), microseconds (10–6sec), and nanoseconds (10–9 sec).

References in periodicals archive ?
The employees retained legal title to the property; there was no intention to transfer ownership; the sales contracts were executory in nature, only executed if the property were not sold to a third party within a year; and the employee received any profits beyond the original contract price.
Establish a policy of mailing payment only to the original owner of the funds, thereby leaving third parties to make their own collections.
At Fifth Third, Mark Graf, the senior vice president and CFO, is the person charged with seeing that takeover risks are minimized and that Fifth Third's strategy does not falter.
Even novice football observers can readily see how successful or unsuccessful a team is offensively or defensively on third down.
Third Place: Seth Custer, West Central Division (North Dakota); Elizabeth Rheude, teacher
In other words, if the third-party provider is connected to or involved in the provision (or processing) of the services offered by the practitioner, there is no requirement to disclose to the client the fact that information is shared with that third party.
2 percent availability rate at the end of the third quarter still remained almost a percentage point higher than a year ago at the same time.
Often, the third party requesting additional insured status asks for a certificate of insurance as evidence that coverage has been provided.
The federal crime bill requires that the third strike be either violent or drug-related, but the first two counts can be simple property crimes.
As you noted in your letter, the Service seeks information for third parties in order to uphold the "arm's length standard" of the regulations under Internal Revenue Code (I.