English Wikipedia has an article on:

AK

Wikipedia

AK

1. Abbreviation of Alaska: a state of the United States.

AK (plural AKs)

1. an AK-47, AK-74, or related assault rifle (Avtomat Kalasnikova or Kalashnikov)
2. (by extension, slang, nonstandard) Any assault rifle or machine gun.
   • 2001, “That's How”, in Denaun Porter (lyrics), Marshall Bruce Mathers III and Denaun Porter (music), Devil's Night, performed by D12, New York: Shady Records:

     Cops got AKs, y'all only got pumps, that shit's just dumb.

• AR

• KA, ka, ka-

• Audio:

  (file)

AK

1. abbreviation of Abendkasse, often found on concert or event tickets indicating a price that has to be paid at the venue at the evening of the event, as opposed to a presale ticket price

• IPA^(key): /a.ka/

AK (plural AK-AK)

1. initialism of angka kredit
2. (education) initialism of akademi komunitas
3. (military) an AK-47, AK-74, or related assault rifle (Avtomat Kalasnikova or Kalashnikov)

Polish Wikipedia has an article on:

AK

Wikipedia ^pl

• IPA^(key): /aˈka/

• Audio:

  (file)

• Rhymes: -a
• Syllabification: A‧K

Initialism of Armia Krajowa.

AK n (indeclinable)

1. (historical, military) abbreviation of Armia Krajowa

Initialism of Akcja Katolicka.

AK n (indeclinable)

1. (Roman Catholicism) abbreviation of Akcja Katolicka

• AK in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
• AK in Polish dictionaries at PWN

AK

1. initialism of Avrupa Konseyi (Council of Europe).