Categories: Lists of three-character combinations American troops man an anti-aircraft gun near the Algerian coastline in 1943 Anti-aircraft warfare, or air defense, is any method of engaging military aircraft in combat from the ground. ... Abbottabad is the principal city of the Abbottabad District in the Northwest Frontier Province of Pakistan. ... Afriqiyah Airways is an airline based at Tripoli International Airport in Tripoli, Libya. ... Categories: Computer stubs | Spyware removal | Windows-only software ... It has been suggested that Apocopation be merged into this article or section. ... Acronyms and initialisms are abbreviations, such as NATO, laser, and LED, written as the initial letter or letters of words, and pronounced on the basis of this abbreviated written form. ... Acronyms and initialisms are abbreviations, such as NATO, laser, and LED, written as the initial letter or letters of words, and pronounced on the basis of this abbreviated written form. ... Most three-letter English words are only one syllable long; however, there are certain exceptions such as emu and era. ...