tugboat

A tugboat improbably sits high on the bank, obscured by tall grass, a broken oil rig hangs over the water nearby.

After airstrikes began, Libyan armed men seized an Italian tugboat in Tripoli used to service the coastal oil platforms.

A half-mile or more distant from them a big, ocean-going tugboat was passing down the bay, without a tow and under full steam.

I did not give up the venture there, however, but directed the captain of the tugboat to make directly for the island.

A little abaft her beam a tugboat was blowing one long and two short, indicating her tow.

It was on the tip of Mayo's tongue to argue the matter with the tugboat man, but he took second thought and shut his mouth.

So the young man accepted Captain Dodge's invitation and climbed to the tugboat's pilot-house.