KEYBOARD DICTIONARIES
To manage keyboard dictionaries, go to 
Settings > Personal > Language & input.
PERSONAL DICTIONARIES
You can add your own words to your personal dictionary so that your device remembers them. To add a word or phrase, including an optional shortcut, go to Settings > Personal > Language & input > Google Keyboard > Text Correction > Personal dictionary and the language of the dictionary you want to modify, then choose Add and type in the word. When you use the optional shortcut when typing, your word or phrase appears as an option in the suggested words above the keyboard.
ADD-ON DICTIONARIES
1. Go to Settings > Personal > Language & input > Google Keyboard > Text Correction > Add-on dictionaries.
2. You’ll see dictionaries for other languages that you can download to your device.
3. Touch the dictionary you want, then Install.
TYPE BY SPEAKING
You can speak to enter text in most places where you can enter text with the onscreen keyboard.
1. Touch a text field, or a location in the text you’ve already entered in a text field.
2. Touch the 
Microphone key on the onscreen keyboard.
3. When you see the microphone image, speak what you want to type.
In some languages, you can also enter punctuation by speaking it, like “comma,” “period,” “question mark,” “exclamation mark,” or “exclamation point.”
Supported languages include English, French, Italian, German and Spanish.
To improve processing of your voice input, Google may record a few seconds of background noise in temporary memory at any time. This recording remains on the device only temporarily and is not sent to Google.
To change your speech settings, go to Settings > Personal > Language & input.