The Brazilian English Dictionary O is an offline dictionary that allows users to translate between English and Brazilian Portuguese without the need for an internet connection. With over 40,000 entries, this app is perfect for travelers who want to avoid expensive data roaming fees. It also includes a built-in Text-to-speech synthesizer that allows users to listen to the correct pronunciation of words and expressions in English (American, British) and Portuguese (Brazilian and European if installed).

The app also features a bookmarking function, allowing users to save their favorite translations and backup to an SD card. Users can also share any translation pair via SMS, email, or other platforms. It should be noted that this version is supported by ads, but the internet access permission is only used to load the banner that allows the app to be provided for free. Overall, the Brazilian English Dictionary O is a useful tool for anyone looking to translate between English and Brazilian Portuguese offline.