What does second language learner mean?

Second language learning is a mindful procedure where the learning of another language other than the First Language (L1) takes place. It is frequently mistaken with bilingualism and multilingualism, the process has to take place after the first language(s) has already been acquired. Having said that, Second language learning could also refer to the third, fourth, or fifth (so on and so forth) language the learner is currently learning.

They are aspiring language learners from different countries all over the world. These learners are very eager to learn other foreign languages aside from their first language. These languages could be English, Chinese, Arabic, Korean etc. It depends upon their preference. These learners will become a linguistic if they successfully learned multiple foreign languages.