third

Etymology

PIE word *tréyes From Middle English thirde, thridde, from Old English þridda, from Proto-Germanic *þridjô, from Pre-Germanic *tretyós, a remodeling of Proto-Indo-European *tr̥tyós.

adj

1. The ordinal form of the cardinal number three; Coming after the second.
   The third tree from the left is my favorite.
   The second and third quarters of the shield are indecipherable on the stone but clearer in two other representations of the arms, a painted wooden funeral hatchment for Mary Davie[…] 8 October 2012, Daniel W. Patterson, The True Image: Gravestone Art and the Culture of Scotch Irish Settlers in the Pennsylvania and Carolina Backcountry, UNC Press Books, page 141

noun

1. The person or thing in the third position.
   Jones came in third.
2. One of three equal parts of a whole.
   He ate a third of the pie. Divided by two-thirds.
3. (uncountable) The third gear of a gearbox.
   Now put it into third.
4. (music) An interval consisting of the first and third notes in a scale.
   They sing in thirds.
5. (baseball) third base
   The play ended with Jones standing on third.
6. (golf) A handicap of one stroke every third hole.
7. A third-class degree, awarded to the lowest achievers in an honours degree programme
8. (archaic) One sixtieth of a second, i.e., the third in a series of fractional parts in a sexagesimal number system. Also formerly known as a tierce.

verb

1. (informal) To agree with a proposition or statement after it has already been seconded.
2. To divide into three equal parts.