tel.

/T EH1 L/
noun
  1. 1

    (law) Abbreviation of telephone. [(countable, telephony) A telecommunication device (originally mechanical, and now electronic) used for two-way talking with another person (now often shortened to phone).]

  2. 2

    (law) Abbreviation of telegraph. [(uncommon) Synonym of telegraphy, any process for transmitting arbitrarily long messages over a long distance using a symbolic code.]