vein
n//veɪn//ven, åder, bladnerv, nerv, ådra
(anatomy) A blood vessel that transports blood from the capillaries back to the heart.
(botany) In leaves, a thickened portion of the leaf containing the vascular bundle.
(figurative) A topic of discussion; a train of association, thoughts, emotions, etc.
A stripe or streak of a different colour or composition in materials such as wood, cheese, marble or other rocks.