 |
T.N
| R
| T-N | |
| abbr. earth.sc. | total nitrogen |
| T.N. | |
| abbr. earth.sc. | true North |
| abbr. econ. | trade name |
| abbr. met. | technical notes |
| abbr. oil | technical note |
| T/N | |
| abbr. auto. | tool number |
| abbr. busin. | transferable notice |
| abbr. mil. | Targeting and Navigation |
| st.exch. | tomorrow/next |
| tech. | test-tone-to-noise ratio |
| R | |
| abbr. med. | In Electrocardiography, The First Positive Deflection During The QRS Complex |
| T: 26 phrases in 10 subjects |
| Abbreviation | 10 |
| American stock exchange | 1 |
| Energy system | 1 |
| Humorous / Jocular | 1 |
| Information technology | 4 |
| Medical | 4 |
| Military | 2 |
| New York Stock Exchange | 1 |
| Rail transport | 1 |
| Stock Exchange | 1 |