The lower part of o and u is standing alone here.
It is the basic shape for 'a', 'n', etc.
Straight line to the top, as in 'k', for example.
This is something completely different from all other letters.
The weird shape of the 'z' can be formed from 's' and 'ts'.
Congratulations! You have come quite far at this point. With your knowledge you are at least ready to convert all D'ni texts you find into 'normal' letters. But this is also a turning point. The fan community is far from knowing the language really. OK, we have words, we know the letters, we know the grammar, but it is an act of showing respect to Cyan that we do not get our words from other sources than the official ones. Anyway: I assume you know this and want to learn the language though. Here's the next: number words.
1 fah 14 naigator 2 bree 15 heebor 3 sehn 16 heegafah 4 tor 17 heegabree 5 vaht 18 heegasehn 6 vagafah 19 heegator 7 vagabree 20 rish 8 vagasehn 21 rigafah 9 vagator 22 rigabree 10 naivoo 23 rigasehn 11 naigafah 24 rigator 12 naigabree 25 fahsee 13 naigasehn 0 roon
The last grammatical rules will be explained in lesson 6.