tegestologist
A teapot contains tea. The word teapot begins and ends with the letter t.
Tarantella is a 10 letter word. It begins with the letter T and ends with the letter A.
adjutant
advocat
Quaint is a 6 letter word that begins with the letter q and ends with t.
A word that fits your criteria is "tolerant." It begins with 't' and ends with 't,' and it conveys the idea of being accepting of others and their differences.
East
tornado
Trollop.
nitwitt
township
township