overwatch

/OW0 V ER0 W AA0 CH/
noun
  1. 1

    (military) The supervision of one unit or vehicle by another while the supervised unit is firing or moving.

verb
  1. 1

    (transitive) To watch over.

  2. 2

    (transitive) To watch excessively.

  3. 3

    (transitive, obsolete) To overcome with long lack of rest.