The name al-Qaeda

In Arabic, al-Qaeda (القاعدة al-qā'ida) has four syllables, and is pronounced [alˈqɑːʕɪda]. However, since two of the Arabic consonants in the name (the voiceless uvular plosive [q] and the voiced pharyngeal fricative [ʕ]) are not phones found in the English language, the closest naturalized English pronunciation is IPA: /ælˈkɑːiːdə//. More commonly, /ælˈkaɪdə/ and /ælˈkeɪdə/ are heard. Al-Qaeda's name can also be transliterated as al-Qaida, al-Qa'ida, el-Qaida, or al Qaeda.[24]

The name of the organization comes from the Arabic noun qā'idah, which means "foundation, basis" and can also refer to a military "base". The initial al- is the Arabic definite article "the", hence "the base".

Osama bin Laden explained the origin of the term in a videotaped interview with al Jazeera journalist Tayseer Alouni in October 2001:

The name 'al-Qaeda' was established a long time ago by mere chance. The late Abu Ebeida El-Banashiri established the training camps for our mujahedeen against Russia's terrorism. We used to call the training camp al-Qaeda. The name stayed.[25]