What is the meaning of the word "t-shaped"?

Definitions:

  1. In business, education, and career development, refers to someone who has a broad range of general skills and deep expertise in a specific area. copy to clipboard ADJECTIVE
    • T-shaped professionals are valued for their ability to collaborate across disciplines while bringing depth to their own field. copy to clipboard
  2. Refers to any object or structure that resembles the shape of a capital "T", a horizontal top intersected by a vertical stem. copy to clipboard ADJECTIVE
    • The architect designed a T-shaped hallway. copy to clipboard