Word TypesParley lets you associate word types with the words. Word types are for example: Nouns, Verbs, Adjectives and Adverbs.
In order to work with word types, enable the word type tool with the check box: →
You can categorize the word types just like units.
If you want to see all words of a certain type - e.g. all nouns, simply select the noun category, and you will see only nouns in the table.
The easiest way to set the word type, is to drag and drop a word onto its type. You can even do this with multiple words at the same time.
Use the 
Add New Entry icon in the toolbar to add new words. You can start typing the word in the first language right away. After entering the first word, press Tab key to go to the next language.
If you want to replace a word, select its entry and start typing. To change the word instead, double click the entry and you can change the contents of the cell without losing the old word.
Press Tab key to go to the next word while staying in editing mode. Enter key leaves this mode. You can use the arrow keys to move around.