Countrywide means happening across the whole nation. A countrywide campaign.
It is written as one word, unlike nationwide's close relative country-wide. A countrywide figure hides enormous differences between one region and another.
1adjectivecountrywideHappening across the whole nation.
“The countrywide survey took three years to complete.”
countrywide is a quality.
Proto-Indo-European
*dwóh₁
Middle English
wid
Old English
wīd
English
wide
English, today
countrywide
From country + -wide. wide comes from Old English wīd. From Middle English wid, wyd, from Old English wīd (“wide, vast, broad, long; distant, far”), from Proto-Germanic wīdaz, from Proto-Indo-European h₁weydʰh₁- (“to divide, separate”), a dissimilated univerbation from dwi- + dʰeh₁-. 2
Etymology from Wiktionary, CC BY-SA