Google ANDROID Quick Start Guide (4.4, KitKat) - Manual (Page 35)

ANDROID QUICK START GUIDE USE THE KEYBOARD 31
Personal dictionary
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, touch the Settings icon beside
the keyboard that you’re using, then Personal dictionary and the
language of the dictionary that you want to modify, then the Add
icon.
Add-on dictionaries
1. Touch the Settings icon next to Google keyboard or
whatever keyboard you’re using.
2. Touch Add-on dictionaries.
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 on-screen keyboard.
1. Touch a text field, or a location in text you’ve already entered
in a text field.
2. Touch the Microphone key on the on-screen keyboard.
3. When you see the microphone image, speak what you want
to type.
In English only, you can also say “comma”, “full stop”, “question
mark” or “exclamation mark” to enter punctuation.