vein >> /veɪn/
Definition: [noun] Any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
Example: This puts the full weight of your uterus on your back and on the major vein that carries blood between your lower body and heart.
Definition: [noun] A fracture in rock containing a deposit of minerals or ore and typically having an extensive course underground.
Example: gold-bearing quartz veins
Definition: [noun] A distinctive quality, style, or tendency.
Example: he closes his article in a somewhat humorous vein