(July 18, 2015 at 6:56 am)Atheist_BG Wrote: Blanket: A large piece of woven material used as a covering for warmth, especially on a bed.
Blank: Containing no information; unrecorded or erased: a blank tape; a blank diskette, a blank statement.
In English, blanket has several meanings. They aren't using blanket to mean a large piece of woolen or similar material but as an adjective to mean 'covering all cases or instances'. The term, 'blanket statement' is actually a pretty common phrase in the English language. Don't feel bad for not knowing that. English is a weird language even if it is my native tongue.
blan·ket
ˈblaNGkət/
noun
1.
a large piece of woolen or similar material used as a bed covering or other covering for warmth.
2.
PRINTING
a rubber surface used for transferring the image in ink from the plate to the paper in offset printing.
adjective
1.
covering all cases or instances; total and inclusive.
"a blanket ban on tobacco advertising"
synonyms: complete, total, comprehensive, overall, general, mass, umbrella, inclusive, all-inclusive, all-around, wholesale, outright, across-the-board, sweeping, indiscriminate, thorough; More
verb
1.
cover completely with a thick layer of something.