Abbreviation Challenge

Major Abbreviations

• ABCD: American, British, Chinese, Dutch (Powers in World War II)
• TBD: To Be Determined (not explicitly stated in the text, but a common abbreviation)

Business and Management

• Accelerated Business Collection and Delivery (ABCD): rapid business transactions and logistics
• Admin: Administration or Administrative (referring to management or executives)

Calendars and Dates

• AC: After Christ (anno Christi, referring to years in the Gregorian calendar)
• AH: After Hijra (referring to years in the Islamic calendar)

Health and Medicine

• AIDS: Acquired Immune Deficiency Syndrome (a chronic disease affecting the immune system)
• ALL: Acute Lymphoblastic Leukemia (a type of cancer characterized by an overproduction of immature white blood cells)

Education

• MA: Master of Arts (a postgraduate degree in the humanities or social sciences)

International Organizations

• Amnesty International (organization focused on human rights and advocacy)
• Arab League (a regional organization comprising 22 member states, including Algeria, Bahrain, Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Morocco, Oman, Qatar, Somalia, Sudan, Syria, Tunisia, and the United Arab Emirates)

Military and Defense

• SAM: Surface-to-Air Missile (a type of missile designed to intercept and destroy airborne targets)

General

• Anti-: Prefix meaning "against" or "opposite" (used in words like "antidote" or "antagonist")
• University: An institution of higher education and research (used in the context of the Arab League)