Pronunciation:
* Ceceo: In Spain, the letters "c" and "z" are pronounced as a soft "th" sound. In Cuba, they are pronounced as a hard "s" sound.
* Seseo: In Spain, the letters "s" and "z" are pronounced as a soft "s" sound. In Cuba, they are both pronounced as a hard "s" sound.
* Yeísmo: In Spain, the letters "y" and "ll" are pronounced as separate sounds. In Cuba, they are both pronounced as a "y" sound.
Vocabulary:
* Different words for the same thing: There are many words that are used differently in Spain and Cuba. For example, the word "coche" means "car" in Spain, while in Cuba it means "bus".
* Cognates: There are also many cognates between Spain Spanish and Cuban Spanish, which are words that have the same root but different meanings. For example, the word "computadora" means "computer" in both languages, but in Spain it is pronounced with a soft "th" sound while in Cuba it is pronounced with a hard "s" sound.
Grammar:
* Voceo: In Spain, the personal pronoun "vosotros" is used to address a group of people. In Cuba, the pronoun "ustedes" is used instead.
* Subjunctive mood: The subjunctive mood is used more frequently in Spain Spanish than in Cuban Spanish.
* Ser and estar: The verbs "ser" and "estar" are used in different ways in Spain Spanish and Cuban Spanish. In Spain, "ser" is used to describe permanent characteristics, while "estar" is used to describe temporary states. In Cuba, however, "ser" is used to describe both permanent and temporary characteristics.
These are just a few of the key differences between Spain Spanish and Cuban Spanish. There are also many other differences in pronunciation, vocabulary, and grammar. As a result, it can be difficult for speakers of one variety of Spanish to understand speakers of the other.