Developing the application for multiple languages is called globalization and testing the application which is developed for multiple languages is called globalization testing.

 There are 2 types of globalization testing,

• Internationalization Testing ( I18N testing )
• Localization Testing ( L10N testing )

I18N testing : Internationalization testing is a test technique which verifies compatibility of your website or app across different regions in the world. It is often referred to in its shortened form, i18n, where 18 comes from the number of letters between ‘i’ and ‘n’.

L10N testing : L10n refers to “localization”. Similarly to the meaning of i18n, L10n stands for the letters between the “L” and “n” in “localization”. Localizing your product and/or content is all about making it more appealing to a specific locale. Hence the name, localization.