| Tropaion | tropaion |
| Propanon | acetone |
| Trobador | troubadour |
| Troerin | Trojan |
| Tröpfeln | trickle |
| tröpfeln | drip |
| Atropin | atropine |
| Tropen | tropics |
| Tropfen | drop raindrop wine dripping |
| tropfen | drip drop |
| Aerophon | aerophone |
| Propadien | propadiene |
| Propanol | propanol |
| Propin | propyne |
| Propan | propane |
| Propylon | propyleum |
| topasen | topaz |
| Adoption | adoption affiliation |
| Erosion | erosion |
| Eruption | eruption |