anniversary
επέτειος (epéteios)
χαρούμενη επέτειο
Sovame latioca
No, you say Happy Birthday to someone to congratulate them on their birthday. You say Happy Anniversary to a couple who are celebrating their anniversary together.
"Vrolijke verjaardag" is how you say Happy Anniversary in Flemish.
anniversary of transition
it means to turn (convert,anniversary) its Greek/ Latin
Gelukkige herdenking - it's more of a congratulations with the anniversary though.
Two-month anniversary is the most common and professional
anniversario
Anniversaire
You'd more properly say "the anniversary of his (or her) death."
You can say "Feliz aniversário de casamento" in Portuguese to mean happy wedding anniversary.