Keep in mind that not only is our audience potentially from many different countries, but their primary language may be something other than Spanish, or they may have received little formal education. Choose the words that will be understood by the largest portion of the local Spanish-speaking population.
We need further research about who this is. For now, let’s defer to institutions that have been dealing with Hispanic linguistic diversity in the United States for a long time such as Univision, Telemundo and Spanish in Texas.
The Royal Academy of Spain (RAE), while a useful supplement, should not be the preeminent authority here for because while the RAE does consult language academies throughout Latin America and produce a “Dictionary of Americanisms,” there is currently no academy for Spanish spoken in the U.S., let alone in Texas. Spanish is a colonial language but we do not want to reproduce systems of coloniality in the contemporary usage of that language by continuing to defer to authorities in Spain.
Prioritize common usage.
Googling the term in English and Spanish is a useful way to verify that you have the correct term.
Here’s an example of what we want: “watershed” and “cuenca hidrográfica”
search results for "watershed"
search results for “cuenca hidrográfica”
Here’s an example that would warrant further thinking: “pitchfork” and “horqueta”
search results for "pitchfork"
search results for "horqueta"
As you researched other possible translations for pitchfork, you would come across “tenedor de jardín.”
search results for “tenedor de jardín.”
Another way you might use Google is to get a rough idea about the frequency of two words that have the same meaning. All else being equal, choose the more frequently used word. Google Translate also has a frequency score you can use. For example, there are many more results for "Costo" than "Coste".
Google Trends is also a useful source for searching the frequency of search terms in the United States.
Include the English term when necessary.
If the English term is common and the Spanish term is not, it is ok to put the English in parentheses. For example:
(WIC, en ingles)
Keep these conventions in mind
Use the formal “Usted” to address the user.
Use -a/o for gendered words.
If you are linking to content, make sure the link is also in Spanish when possible. When a link text takes the reader to an English page, denote that in the hyperlink “(en inglés)”.
Avoid using historical present (presente histórico) verb tense. It may be confusing to people with low literacy or cognitive disabilities.
Do not translate addresses (i.e. “street” “parkway” “court”).
Use the American way to write numbers: $1,276.50 not $1.276,59.
Use Spanish-order for dates (3 de octubre de 2014).
Use AM/PM rather than military time.
Billion = Billón (1,000,000,000) and Trillion = Trillón (1,000,000,000,000).