| coup de main |
blow from the hand (French); a surprise attack or sudden action against an enemy. |
| gas main |
a large pipe that conducts gas into smaller pipes. |
| in the main |
for the most part; mainly; chiefly. |
| main clause |
in grammar, esp. in a sentence that contains more than one clause, a clause that can function by itself as a sentence; independent clause. |
| main drag |
(slang) the main street of a town. |
| main stem |
(informal) the principal street in a town or the main line of a railroad. |
| main yard |
the lowest transverse spar or pole on the mainmast, used to set the mainsail on a sailing vessel. |
| main-topmast |
the section of the mainmast on a sailing vessel that is positioned between the top and lower masts. |
| main-topsail |
the sail set above the mainsail on the main-topmast of a vessel. |
| Spanish Main |
formerly, the coastal region of northern South America. [2 definitions] |
| water main |
the main pipe in an underground system of pipes that conveys water. |
| with might and main |
with all available strength and power. |