flax [flaks]
noun
1. any plant of the genus Linum, especially L. usitatissimum, a slender, erect, annual plant having narrow, lance-shaped leaves and blue flowers, cultivated for its fiber and seeds.
2. the fiber of this plant, manufactured into linen yarn for thread or woven fabrics.
3. any of various plants resembling flax.
flask [flask, flahsk]
noun
1. a bottle, usually of glass, having a rounded body and a narrow neck, used especially in laboratory experimentation.
2. a flat metal or glass bottle for carrying in the pocket: a flask of brandy.
3. an iron container for shipping mercury, holding a standard commercial unit of 76 pounds (34 kg).
4. Metallurgy . a container into which sand is rammed around a pattern to form a mold.