tsb

/S B/
noun
  1. 1

    Initialism of Trustee Savings Bank.

  2. 2

    Initialism of Transportation Safety Board (โ€œCanadaโ€).

  3. 3

    Initialism of Transport Safety Board (โ€œJapanโ€).

  4. 4

    Initialism of transportation safety board or transport safety board.

  5. 5

    Initialism of technical service bulletin.

  6. 6

    Initialism of traffic signal box. [(US, Australia) Any of the large metal boxes containing traffic signal controls, found at roadsides and intersections, and often made available by the local council for artistic work.]