n. 2. A measure of liquid capacity, equal to a third of a pipe, or 42 gallons (159 liters). 3. Games A sequence of three cards of the same suit. 4. Sports The third position from which a parry or thrust can be made in fencing. 5. Music An interval of a third. [Middle English, from Old French, from feminine of tiers, third, from Latin tertius; see trei- in the Appendix of Indo-European roots.] |
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