Nun

The letter nun is the 14th letter of the Hebrew alephbet. It has the value 50.
The pictograph looks like a seed.
The meaning of nun; to sprout, to spread,a fish ( a symbol of activity and life ),offspring, descendant, action, life.
Nun is also said to represent both faithfulness and the reward for faithfulness.

The first mention of the word for fish ( nun) is found in Exodus 33v11, in reference to Joshua, 'the son of Nun'.
Joshua the one who entered the Promised Land, was the ' son of Life', a picture of Jesus.

The symbol of the fish has early roots in Christianity as the emblem of the Messiah Jesus. The word for fish in Greek is ' Ixthus ', which some believe was used as an acronym for the Greek phrase, ' Yesous Christos Theou Uios Soter ' - Jesus Christ the Son of God Saviour.
( Hebrew for christians )

50
50 days from the Exodus to the giving of the Torah
50 years for a Jubilee year
50 references to Exodus in the Torah.
50 years of age before one as wisdom.

Nun words -
Lamp ( ner ) , translates as life to the head ( sight), is a lamp.

How does Jesus fulfil the letter Nun ;
Your Word ( Jesus) is life to my person and to my feet He shines the way on my path.
Psalm 119 v 105 Your Word is a lamp to guide my feet and a light for my path.

Revelation 21v23 And the city has no need of sun or moon, for the glory of God illuminates the city,and the Lamb is its lamp.

Revelation 22v5 And there will be no night there - no need for lamps or sun - for the Lord God will shine on them.

The promised seed ( Jesus ) provided light for us, that we might be fellow heirs with Him.

John 10 v 10 I have come that they may have life , and have it to the full.
Jesus imparts His life to us.