Concept of FL

Foreign language is one learned in the student's country of origin, so that, when someone learns a particular language in a country whose spoken language is not the target language, for example, a Brazilian who lives in Brazil learning English in courses taught in language schools, in regular schools and in universities. In this way, a foreign language is a language that is not the mother language of a person. 

http://humanities.exeter.ac.uk/media/universityofexeter/collegeofhumanities/flc/responsiveimages/foreign_language_centre_930.jpg

In language learning, immersion in the language is much lower than in the second language. The student has contact with the language only during the classes and practical conversation with the teachers and colleagues. To improve his knowledge, he will have to look for opportunities to practice the language studied.

( http://blog.portalpravaler.com.br/wp-content/uploads/2015/01/ESL.png )

SECOND LANGUAGE: It is a language learned in a country where the target language is the language used socially. For example, a Brazilian living in New York learns English as a second language.

FOREIGN LANGUAGE: It is a language you learn in a country where the spoken language is not the target language, for example, a Brazilian who lives in Brazil learning English in a language school.

FURTHER READING:

<<https://espanholnarede.com/qual-e-a-diferenca-entre-segunda-lingua-e-lingua-estrangeira/>>

<<https://novaescola.org.br/conteudo/2459/ensino-de-lingua-estrangeira-vai-alem-da-gramatica>>

<<https://pt.m.wikipedia.org/wiki/Língua_estrangeira>>

<<https://cacs.org.br/linguas/lingua-estrangeira/>>