The dictionary grows thanks to the participation of people who desire add terms, the conditions are just that the English term could be translated only to one Spanish term.
Is is possible to add compound terms like: "happy birthday" and compound translations like"feliz cumpleaños". In these cases they woulb be stored in the dictionary as "happy-birthday", and our algorithm is able to find compound words.
The dictionary can contain verbs in infinitive and in present 3rd person and its verb<->noun, but the verbs translation is done by a basic predictive algorithm, so it can have mistakes.
If a word in the dictionary has a wrong translation is possible to modify from this Web site.
If a word thought to have a direct translation turns out to have more than one translation, which are not synonym, then you can erase from the dictionary.