whilst
conjunction
[ wʌɪlst ]
• during the time that; at the same time as.
• "Michael runs the island co-operative whilst Mary runs the pub"
• whereas (indicating a contrast).
• "some employers have a relaxed dress code, whilst others insist on formal attire"
whilst
adverb
• during which; while.
Origin:
late Middle English: from whiles + -t as in against.
