perihelion /per-i-hēˈli-ən/

1. The point of the orbit of a planet or a comet at which it is nearest to the sun, opp to aphelion
2. Culmination (figurative)

• train mile
• train miles
• train-oil
• trains
• trainspotter
• trainspotters
• trainspotting
• Train à Grande Vitesse
• traipse
• traipsed
• traipses
• traipsing
• traipsings
• trait
• traitor
• traitorhood
• traitorhoods
• traitorism
• traitorisms
• traitorly
• traitorous
• traitorously
• traitorousness
• traitorousnesses
• traitors