From Longman Dictionary of Contemporary Englisha wide variation/difference/gap etca wide variation/difference/gap etcBIGa large and noticeable difference the ever-wider gap between the richest and poorest countries → wide
Examples from the Corpus
a wide variation/difference/gap etc• Within the general waste type shown in these figures exists a wide variation.• Waiting time by specialty is meaningless as it conceals a wide variation among consultants' clinics.• There is a wide difference between promise and performance.• The second column also shows that there is a wide variation between regions in the proportion of exports to foreign debt.• Solids exhibit a wide variation in rigidity.• Just as there may be a wide variation in the inputs, so may the outputs vary.• But there is, indeed, still a wide gap in the use of flexibility.• But when the national polls are a wide gap, the country is pretty likely to follow. 