Looking up...
Le sang circule dans les veines.
Blood circulates in the veins.
A blood vessel that carries blood toward the heart.
L'infirmière a cherché une veine pour la piqûre.
The nurse looked for a vein for the injection.
Anatomical structure.
A layer of mineral ore in the earth's crust.
Les mineurs ont découvert une veine d'or.
The miners discovered a vein of gold.
Geological context.
A streak of good luck or a period of success.
Il est dans une bonne veine aujourd'hui.
He is on a roll today.
Used metaphorically to describe sustained success or mood.
A particular style, tone, or genre.
Ce film est dans la veine de Hitchcock.
This film is in the vein of Hitchcock.
Refers to artistic lineage or thematic similarity.
Remember that while 'veine' is the anatomical term for a blood vessel, it is also the go-to word for 'luck' in informal speech. If you are talking about a doctor, it is anatomy; if you are talking about winning a game, it is luck.
Veine is a feminine noun (la veine). Adjectives must agree: 'une bonne veine', not 'un bon veine'.
From Latin 'vena', meaning vein.
In everyday French, 'veine' is frequently used metaphorically to describe luck ('avoir de la veine') or a consistent style ('dans la veine de'). Do not confuse with 'artère' (artery), which carries blood away from the heart.