Adjective third has 2 senses
  1. third, 3rd, tertiary - coming next after the second and just before the fourth in position
    Antonym: cardinal (indirect, via ordinal)
  2. third - being one of three equal parts; "a third share of the money"
    whole (indirect, via fractional)
,Adverbial third has 1 sense
  1. third, thirdly - in the third place; "third we must consider unemployment"
,Noun third has 6 senses
  1. one-third, third, tierce - one of three equal parts of a divisible whole; "it contains approximately a third of the minimum daily requirement"
    --1 is a kind of common fraction, simple fraction
  2. third base, third - the fielding position of the player on a baseball team who is stationed near 3rd base; "he is playing third"
    --2 is a kind of position
    --2 is a member of baseball team
  3. third - following the second position in an ordering or series; "a distant third"; "he answered the first question willingly, the second reluctantly, and the third with resentment"
    --3 is a kind of
  4. third - the musical interval between one note and another three notes away from it; "a simple harmony written in major thirds"
    --4 is a kind of
    interval, musical interval
  5. third gear, third - the third from the lowest forward ratio gear in the gear box of a motor vehicle; "you shouldn't try to start in third gear"
    --5 is a kind of gear, gear mechanism
    --5 is a part of car, auto, automobile, machine, motorcar
  6. third base, third - the base that must be touched third by a base runner in baseball; "he was cut down on a close play at third"
    --6 is a kind of base, bag