Cher ... (man's name), chère ... (woman's name)
I'm writing this letter / these letters is j'écris cette lettre / ces lettres ... in French.
Cher John
Chère Christine
The English phrase, "writing with light", is "écrire avec la lumière" in French.
"Oui, mon Amour." or yes my dear, "Oui, ma cherie"
John Smith is the Doctors cover name. His real name is The Doctor, he chose it. If you were writing him a letter, I would say Dear Doctor.
chers amis is how to say dear friends in French.
Dear daughter is 'chère fille' in French.
I'm writing this letter / these letters is j'écris cette lettre / ces lettres ... in French.
je ecries une lettre paun tu
Cher John
Cher oncle
cher oncle
chère famille
"Cher grand-parents" it's the same except for 'dear'.
mon Cher is French for my dear.
Mon Cher Ange