There are geographical differences to consider. Some words are only used in certain countries of Latin America. Then ask a Nicaraguan. Then ask a Chilean. You will get three different answers.
Some words have different meaning in different countries.
You will get two very different answers. Translating into English may also not be enough. Browsers may be configured to render documents in many different languages. To do this, three settings need to configured. The language preferences setting lets the viewer indicate to the Web server in which language the document should be sent.