Here you can find the 5 of final or ending letters, those are only used at the end of words the pronounciation is the same as the reglar letters. for example the letter NUN - נ - N will be written differently in the word KAN because it's the final lettr in the word so in hebrew the word will be written כאן. just remember that the letters מ,נ,פ,כ,צ having a different form while apearing at the end of the word. ם,ן,ף,ך,ץ .
שָׁלוֹם חַלּוֹן נָסִיךְ כֶּסֶף קִיבּוּץ
As you can see in each and every of these Hebrew words last letter is written different. but sound exactly they same let's have a closer look at the word שלום - SHALOM the last M is written differently.
You can also visit the "Hebrew Alphabet" in the "Basics Menu" and have another look at those 5 special letters, they will be highlighted in red.