"USS Lexington (CV-2), nicknamed "Lady Lex", was an early aircraft carrier built for the United States Navy. She was the lead ship of the Lexington class; her only sister ship, Saratoga, was commissioned a month earlier. Originally designed as a battlecruiser, she was converted into one of the Navy's first aircraft carriers during construction to comply with the terms of the Washington Naval Treaty of 1922, which essentially terminated all new battleship and battlecruiser construction. The ship entered service in 1928 and was assigned to the Pacific Fleet for her entire career. Lexington and Saratoga were used to develop and refine carrier tactics in a series of annual exercises before World War II.
"During the Battle of the Coral Sea...Japanese aircraft crippled Lexington. A mixture of air and aviation gasoline in her improperly drained aircraft fueling trunk lines (which ran from the keel tanks to her hangar deck) ignited, causing a series of explosions and fires that could not be controlled. Lexington was scuttled by an American destroyer during the evening of 8 May to prevent her capture.
USS Lexington (CV/CVA/CVS/CVT/AVT-16), nicknamed "The Blue Ghost", is an Essex-class aircraft carrier built during World War II for the United States Navy. Originally intended to be named Cabot, word arrived during construction that USS Lexington (CV-2) had been lost in the Battle of the Coral Sea. The new aircraft carrier was renamed while under construction to commemorate the earlier ship.
Lexington arrived at Pearl Harbor on 9 August 1943, and participated in a raid on Tarawa air bases in late September, followed by a raid against Wake Island in October, before returning to Pearl Harbor to prepare for the Gilbert Islands operation. From 19–24 November, she made searches and flew sorties in the Marshalls, covering the landings in the Gilberts. Her aviators downed 29 enemy aircraft on 23 and 24 November."
Source: Wikipedia (here and here)