FI or fi may refer to:
Finland (Finnish: Suomi [ˈsuo̯mi] (listen); Swedish: Finland, Finland Swedish: [ˈfinlɑnd]), officially the Republic of Finland (Finnish: Suomen tasavalta, Swedish: Republiken Finland (listen to all)), is a Nordic country in Northern Europe bordering the Baltic Sea, Gulf of Bothnia, and Gulf of Finland, between Norway to the north, Sweden to the northwest, and Russia to the east.
Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, Mozilla Corporation.
Fiji ( (listen) FEE-jee; Fijian: Viti [ˈβitʃi]; Fiji Hindi: फ़िजी), officially the Republic of Fiji (Fijian: Matanitu Tugalala o Viti; Fiji Hindi: फ़िजी गणराज्य), is an island country in Melanesia, part of Oceania in the South Pacific Ocean about 1,100 nautical miles (2,000 km; 1,300 mi) northeast of New Zealand's North Island.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores.
In mathematics, the Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is,
The financial crisis of 2007–2008, also known as the global financial crisis and the 2008 financial crisis, was a severe worldwide economic crisis considered by many economists to have been the most serious financial crisis since the Great Depression of the 1930s, to which it is often compared.It began in 2007 with a crisis in the subprime mortgage market in the United States, and developed into a full-blown international banking crisis with the collapse of the investment bank Lehman Brothers on September 15, 2008. Excessive risk-taking by banks such as Lehman Brothers helped to magnify the financial impact globally.
Fidel Alejandro Castro Ruz (American Spanish: [fiˈðel aleˈxandɾo ˈkastɾo ˈrus]; 13 August 1926 – 25 November 2016) was a Cuban communist revolutionary and politician who governed the Republic of Cuba as Prime Minister from 1959 to 1976 and then as President from 1976 to 2008. A Marxist–Leninist and Cuban nationalist, Castro also served as the First Secretary of the Communist Party of Cuba from 1961 until 2011. Under his administration, Cuba became a one-party communist state, while industry and business were nationalized and state socialist policies were implemented throughout society.