A long strip of stiff metal, frequently kept on a spool, used to guide or draw wires and cables through a building.

duct tape (often regardless of color)

(historical) A kind of tape made from, or incorporating, cotton "duck" fabric. / (trademark, also used generically) A type of multi-purpose heavy-duty adhesive tape.

A generally gray waterproof adhesive tape used for many purposes and easy to cut with the hands.

(transitive) To use duct tape in order to tape one object to another.

The binding tape once used for holding important documents together. / (metonymically, idiomatic) Time-consuming regulations or bureaucratic procedures.

(trading, finance) Paper tape on which a stock ticker, news ticker or similar device would print incoming information.

(trading) To make a trade contrary to the overall tendency of prices, i.e., to buy when prices are generally falling or sell when prices are generally rising.

A graduated flexible ribbon used for measuring lengths.

(sound engineering) An electromechanical device use to record and play back sound, etc.