noun
blotting out; painting over; covering completely
Refers to the act or result of completely covering a surface with paint, ink, or another medium, often to hide or obliterate what was there before.
間違えた部分を黒く塗りつぶしにした。
I blacked out the mistaken part.
壁一面を白で塗りつぶしにする。
I paint the entire wall solid white.
noun
fill (graphics); flood fill; bucket fill
In computer graphics, the operation of filling a bounded area with a solid color or pattern.
ペイントソフトで塗りつぶし機能を使う。
I use the fill function in the paint software.