Usage of offensive words in communication may create social and legal problems for both the owner of the Android device and the message sender. But, its business implication may be rather very serious one. It is a good idea to switch on a unique feature in Android 4.4.4 KitKat to block the suggestions of offensive word by the dictionaries, installed in Android device. If this feature is activated and switched ON, you may lessen the chances of the using offensive words as the dictionaries will not suggest such words.
If you want to switch on this feature, these instructions may help you.
Instructions
1: Tap the icon of the ‘Settings’ on the HOME screen of your Android 4.4.4 KitKat device. It will open up the ‘Settings’ screen. 
2: At the ‘Settings’ screen, scroll to the PERSONAL section and tap ‘Language & input’. 
3: At the ‘Language & input’ screen, tap the ‘Settings’ button of the ‘Android Keyboard’. 
4: At the ‘Keyboard Settings’ screen, tap the ‘Text corrections’. 
5: See the ‘Block offensive words’ is not checked, i.e. disabled. It means, currently, the Android dictionaries may be suggesting potentially offensive words. 
6: Tap the ‘Block offensive words’ to enable it. 
From now onward, dictionaries installed on the Android device will be blocked from suggesting such words which may be offensive, saving you from many social, moral, ethical, business or legal hazards.
That’s all!