Spanish and Italian share a very similar phonological system. At present, the lexical similarity with Italian is estimated at 82%. As a result, Spanish and Italian are mutually intelligible to various degrees. The lexical similarity with Portuguese is greater, 89%, but the vagaries of Portuguese pronunciation make it less easily understood by Hispanophones than Italian is. Mutual intelligibility between Spanish and French or Romanian is even lower (lexical similarity being respectively 75% and 71%): comprehension of Spanish by French speakers who have not studied the language is as low as an estimated 45% – the same as of English. The common features of the writing systems of the Romance languages allow for a greater amount of interlingual reading comprehension than oral communication would.

వ్యాకరణము
Judaeo-Spanish
వర్గీకరణ, సంబంధిత భాషలు
Vocabulary comparison