IELTS whilst Definition While; during the time that; also used to express contrast. Example "Whilst I was cooking, the phone rang." Sign in to save IELTS Quiz → ← whet whim → Study tips featuring "whilst" Audit Your Own Writing for Lexical Resource Explain New Words Out Loud To Yourself Audit Your Own Writing to Find Gaps Related words TOEFL brighten IELTS startle GRE abide SAT abnormal TOEFL aboard TOEFL abolition IELTS upward TOEFL abort IELTS abortion SAT abrupt SAT absence TOEFL absent