What is Bilingualism?

What is bilingualism? How can we define it? Who can be seen as bilingual? In this video I provide answers to these questions, and for better understanding, I illustrate examples from my own bilingual/multilingual life :) Link to the video:    • How Russians Speak English   #bilingualism #multilingualism #education #stayhome #vlegturing #linguistics #society #language #hse #hse_online #mooc #crazyrussiandad #билингвизм #мультилингвизм #образование #сидимдома #лингвистика #общество #языки #вшэ