• Some parts of messages are not words.

    • Examples include call signs, numbers, abbreviations, email addresses, etc.

    • This example contains no words: 305B NW 1st St

  • The generic term “group” is used to refer to combinations of letters, numbers, and/or symbols, typically separated by whitespace
    • The above example contains 4 groups: 305B, NW, 1st, St

  • All words are groups, but not all groups are words

  • Example groups: car, 53, WD-40, ARRL, W3CTK/2, radio, w3ctk@delcoares.net, https://www.delcoares.net/ 

  • Example words: car, radio