 Welcome to Spotlight. I'm Liz Wade. And I'm Colin Lover. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Does your language use any English words? Yes. No. Hello. Languages often borrow words from each other. English speakers use many words that have come from other languages. For example, you may hear an English speaker say something like this. I cannot believe I made that faux pas in front of everyone. The words faux pas mean a social mistake. They are French, but many English speakers use them. Another example is the word prima donna. This phrase is Italian. It means first lady. English speakers use it to speak about someone who only thinks about themselves. Many languages also use English words. For example, they use the words computer, internet, and email. However, none of these are the most commonly used English word. Do you know what it is? OK. Yes. The word is OK. Today's spotlight is on the word OK. The word OK is an informal spoken word. You will almost never find it in formal speeches, news, media, or books. But it is one of the most common English words. It is also one of the most common English exports from the United States. English professor Alan Metcalf wrote a book about the word OK. He told CBS News, There is no other word that is as widely recognized throughout the whole world. No other American English word has had so much success like that. In a general way, OK signals approval, acceptance, or agreement. People can use it in many different ways. Here are some ways to use the word OK. First, OK can be an adjective or an adverb. It can describe an act or a thing. In this way, it means alright or fine. Are you OK? Here is another example. I hope the children are OK while we are gone. It can also mean fine but not so great. Did you enjoy the dinner last night? It was OK. OK can also be an act or a thing, a verb or a noun. Did your boss give you the time off that you asked for? Yes, she OK'd it. OK is also common as an interjection. It can appear suddenly on its own. In this way, it can simply mean yes or sure. Can you please wash those dishes? OK. Or it can signal that people need to attend. OK, time to begin please. It can also mean enough. OK, please stop now. OK, we are done with this part anyway. You have already heard how many different meanings the word OK has. But did you know that the meaning also changes depending on how you say it? The tone of a person's voice makes a difference. The meaning can change no matter how you use it. For example, the sentence it was OK could be positive or negative. How was the show? It was OK. What do you think this person meant? What about this next example? How was the show? It was OK. The first answer says that the person was not really satisfied but he could not think of something bad to say. The second answer says that the person was satisfied. A person's tone also changes the meaning of the word OK as an interjection. I think we should visit your brother tonight. OK? OK. The first person used OK to ask for agreement. The second person used OK to express questioning or doubt. OK is a small word but it has many different uses. So where did this confusing, complex word come from? People debate the origin of the word OK. The earliest record in print was in 1839 in the city of Boston. At the time it was popular to use groups of letters to signal words. It was also common to spell the words incorrectly using the wrong letters as a joke. A Boston newspaper used the letters O and K to mean all correct. The O meant all and the K meant correct. Around the same time US President Martin Van Buren began to use the word. He was the president and he was trying to get elected again. His political party used the saying vote for OK. Van Buren was from a town in New York called Kinderhoek. In this case he used the letters OK to mean old Kinderhoek. The saying tried to give the message that old Kinderhoek was all correct. Van Buren lost the election. But many language experts think that the election saying helped to make OK a common word. This explanation may also explain the unusual spelling of the word OK. People can write OK in two ways. They can write the word using just the letters O and K. Or they can write it this way. O, K, A, Y. And both ways are correct. Other language experts think the word has a Native American origin. The Choctaw people are one of many Native American groups. The Choctaw language has a word OK. This word means it is so. This is almost the same meaning as today's word OK. As early as 1825, Christian Bible translators used OK in their Choctaw Bible translations. In the 20th century, US President Woodrow Wilson used the Choctaw language to sign documents as OK. Other language experts say that OK came from West Africa. Some West African languages have interjection words that sound similar to OK. For example, the word OK in the Bantu and Wolof languages, or OK in the Mandé language. These words also commonly signal agreement. West African people were brought to the United States as slaves. The theory is that African slaves used these words when speaking English. After a time, the use spread to the rest of the English speaking population. No one knows which story is true. But today, OK is now one of the most common words in English. People use it all the time, everywhere. OK is now an international word. But Professor Metcalf believes that it expresses a cultural value of the United States. He told CBS News. It is strong. It is simple. People from the United States do not like complex ways of life. And OK is about as short and simple as you can get. OK, so after hearing this program, are you OK with spotlight? Or is it just OK? Can you give your OK to our programs? Or would you use another word? We are OK if you are OK. OK? Do you use the word OK? Do you use words from other languages in your language? Tell us about your experiences. You can email us at contact at spotlightenglish.com. You can also find us on YouTube, Facebook, Instagram and Twitter. The writer of this program was Jen Hawkins. The producer was Michio Ozaki. The voices you heard were from the United States and the United Kingdom. All quotes were adapted for this program and voiced by Spotlight. You can listen to this program again and read it on the internet at www.spotlightenglish.com. This program is called How to use the word OK? Visit our website to download our free official app for Android and Apple devices. We hope you can join us again for the next Spotlight program. Goodbye.