From Longman Dictionary of Contemporary Englishmeanwhilemean‧while /ˈmiːnwaɪl/ ●●●W2 adverb [sentence adverb] 🔊 🔊 1TIME/AT THE SAME TIMEwhile something else is happening 🔊 Cook the sauce over a medium heat until it thickens. Meanwhile start boiling the water for the pasta.► see thesaurus at while2BETWEEN (also in the meanwhile) in the period of time between two events 🔊 The flight will be announced soon. Meanwhile, please remain seated. 🔊 I knew I wouldn’t get my exam results for several weeks, and I wasn’t sure what to do in the meanwhile.3TIME/AT THE SAME TIMEused to compare two things, especially if they are completely different and are happening at the same time 🔊 The incomes of male professionals went up by almost 80%. Meanwhile, part-time women workers saw their earnings fall.