The Letter Nun (נ)
(Please note that the pronunciation of the name is somewhere between nun and noon.)
This letter also has two different forms – the regular letter נ and the special final letter ן.
The letter nun represents giving. If we look at the word נָתַן (natan) gave, we see that it starts and ends with the letter נ. This teaches us the reciprocal nature of giving. When one gives to another person, it comes back to him/her in some way.
A person who has the letter nun in their name is someone who takes charge of his/her life and does not let things that happen get him/her down. However, the letter נוּן (nun) can either sit in its place, like its shape נ, or it can stand like in its final letter form ן. This means that the willpower that is expressed in this letter, is something that changes from person to person, and can also change at different times. In fact, our actions can change the situation that we are in.
Someone who has the letter נ in their name, is also a person who has great self-confidence, is knowledgeable, and is good at creating connections with his/her surroundings. However, he/she is not a person who is good at solving problems when they get stuck in a difficult situation, and this is liable to influence their mood. They are good at exact sciences, and are talented in technical matters.
The numerical value of the letter נ is 50, and the Jewish sages say that 50 years old is the age of advice. This is an age when someone is wiser and knowledgeable and is able to give good advice to those around him.
נוּן is actually the Aramaic word for fish, and has been incorporated into the Hebrew names of several marine creatures – such as דְיוֹנוּן (dyonun) squid andתְמָנוּן (tmanun) octopus. This teaches that this letter is also connected to the element of water.
The נוּן also symbolizes the נְשָׁמָה (neshama) soul, spirit, and the sages say that the number 50 represents both purity and impurity together. Therefore, the soul is susceptible to both of these elements and people who have the letter in their name must be careful to take the good parts of life and enrich their souls accordingly.
If you look at chapter 145 in Psalms, you’ll see that it is an acrostic and that the verses go according to the letters of the Aleph-Bet. Each letter appears at the beginning of a verse, except for the letter נ. Commentators say that the reason for this is that the letter also hints at נְפִילָה (nefila) downfall, and therefore King David, the composer of Psalms, left this letter out. In contrast to this, he emphasized the helping and saving aspects of G-d in the verse of the next letter, ס, with the words: “סוֹמֵךְ יְהוָה לְכָל-הַנֹּפְלִים” (somech hashem lechol hanoflim) “The LORD upholdeth all that fall.” He thereby encourages us that the Almighty will help us in a situation where we fall.