(computing) malware

a log cabin

Alternative spelling of 丸 (“circle”)

a circle / a sphere, ball / (by extension) any non-perfectly round objects, such as an oval / the "○" symbol, equivalent to a check mark in some other languages

a circle, usually colored red or gold, shaped like a round sun; in ancient times, imprinted on hand fans and 指物 (sashimono)

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).

a Japanese river otter (Lutra lutra whiteleyi)

a Japanese tree frog (Dryophytes japonicus)

a Japanese wolf, Canis lupus hodophilax

bunch-flowered narcissus (Narcissus tazetta)