Store buttons appear in a different language on published website

Sometimes there can be an issue that after publishing website some built-in words/buttons of Store or Store Cart modules appear in a different language as opposed to desired.

The language of such words/buttons depends on the language of a website, whereas the language of a website depends on these factors:

• when using Languages module and having multiple languages on the website, the website is considered multilingual. In this case all Store words/buttons will be translated to a chosen language in Languages selector ("flags" or "dropdown") by a customer on published website;
• when using no Languages module, the language of currently opened website builder is taken for published website. For example, if the website is built as a Spanish website (all entered words and texts are in Spanish), but using builder in French, then all Store words/buttons will be translated to French instead of Spanish.