Oh, what a delightful question! While there may not be a common English word that starts with a capital "T" and ends with a capital "T," I encourage you to explore the vast and wonderful world of words. Who knows what beautiful creations you may discover along the way! Keep exploring and let your creativity flow like a happy little stream.
quart
thorax
ailment
ballast
ballast
turmeric
* get out * guess what * get it
Intent.
brant
Continue?
Thammuz
dart