This is the 8175th most frequent French word.
valentin
"Valentin" in French refers to "valentine," typically meaning a romantic partner or someone celebrated on Valentine’s Day.
'Valentin' is used here as a noun referring to the person celebrated or designated as one's valentine, typically representing a romantic partner or someone receiving affection on Valentine's Day.
Mon valentin m'a offert des fleurs.
My valentine gave me flowers.
'Valentin' is part of the phrase 'Saint-Valentin,' which refers to the holiday Valentine's Day, celebrated annually on February 14th. Here, it is used as a proper noun.
Le jour de la Saint-Valentin est très populaire.
Valentine's Day is very popular.
'Valentin' is again part of the phrase 'Saint-Valentin,' denoting the occasion Valentine's Day, used as the shift in meaning of 'valentin' from a name to referring to the day associated with love and romance.