Cases of word usage

1) having, of, the colour blue (blue)

2) a little blue in colour (bluish)

3) an injury made by a blow or knock to the body or to a fruit, so that the skin is blue etc but not broken (bruise)

4) a deep blue (dye) (indigo)

5) trousers (usually made of blue demin) worn informally (jeans)

6) (of) red and blue mixed together (purple)

7) (of a gene) showing the weak characteristics which are passed on to later generations, e.g. blue eyes and blond hair (recessive)

8) a bright blue precious stone; a bright blue colour (sapphire)