noun: (automotive, aviation, organic chemistry) tetraethyllead (or tetraethyl lead, tetra-ethyl lead); a gasoline additive to boost octane rating
noun: Abbreviation of telephone number. [The sequence of digits used to identify a particular destination telephone in a network.]
noun: Abbreviation of telegraph. [(uncommon) Synonym of telegraphy, any process for transmitting arbitrarily long messages over a long distance using a symbolic code.]
noun: Abbreviation of telegram. [A message transmitted by telegraph.]
noun: Alternative form of tell (“hill or mound”) [A reflexive, often habitual behavior, especially one occurring in a context that often features attempts at deception by persons under psychological stress (such as a poker game or police interrogation), that reveals information that the person exhibiting the behavior is attempting to withhold.]