"Contiguous 41 States", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License
Alt Text
Linguists, settling some inscrutable grudge, have been steadily sneaking more backdated synonyms for 'sharing borders' into the dictionary. They've added 'contiguous,' 'coterminous,' 'conterminous,' and next year they're adding 'conterguous.'