1. thymine
2. T, pyrimidine, deoxythymidine monophosphate
3. T, nucleotide, metric ton
4. MT, tonne, metric weight unit, weight unit, terabyte
5. T, TB, computer memory unit, T
6. letter, letter of the alphabet, alphabetic character, triiodothyronine
7. liothyronine, T, thyroid hormone, thyroxine
7. thyroxin, tetraiodothyronine, T, thyroid hormone