01 a. Next after the second; coming after two others; -- the ordinal of three; as, the third hour in the day.
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1.
Next after the second; coming after two others; -- the ordinal of three; as, the third hour in the day.
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2.
Constituting or being one of three equal parts into which anything is divided; as, the third part of a day.
Phrases & compounds
Third estate —
In England, the commons, or the commonalty, who are represented in Parliament by the House of Commons.
Third order —
an order attached to a monastic order, and comprising men and women devoted to a rule of pious living, called the third rule, by a simple vow if they remain seculars, and by more solemn vows if they become regulars. See Tertiary, n., 1.