Nouns

(n)space, blanka blank character used to separate successive words in writing or printing“he said the space is the most important character in the alphabet”
(n)lacuna, blanka blank gap or missing part
(n)blanka piece of material ready to be made into something
(n)blank, dummy, blank shella cartridge containing an explosive charge but no bullet

Verbs

(v)blankkeep the opposing (baseball) team from winning

Adjectives

(s)blank, clean, white(of a surface) not written or printed on“blank pages”, “fill in the blank spaces”, “a clean page”, “wide white margins”
(s)blankwithout comprehension“When I called her name, she gave me a blank look, as though she didn't know me”
(s)blanknot charged with a bullet“a blank cartridge”
(s)blank, uttercomplete and absolute“utter seriousness”, “blank stupidity”