1
: to shut from view : screen
that vine on the porch blocks out all the sunlight
:
a
: to prevent (a part of a photographic negative) from printing by painting over with opaque or a comparable substance
b
: to cancel (printed matter) by overprinting with a solid patch of ink
2
a
: to excavate (something, such as ore and gravel) by making a drive in the wall and taking out the material in blocks or strips along the sides of the drive
b
: to subdivide (a lode) into blocks in advance of the working stopes by shafts, winzes, and intersecting drives or levels so as to be ready for stoping and to keep a known amount of reserve ore in sight
plural -s
: a reproduction (such as a photographic negative or a halftone) of which a part has been blocked out
Dictionary Entries Near block out
Cite this Entry
“Block out.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/block%20out. Accessed 1 Dec. 2024.
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