report, paper

three things [small or without a counter category]

Alternative form of 三つ (mittsu)

divide / sort out, separate / classify / share, let someone have / sell

"report manga" (manga that illustrates the experience of something)

section

section / (mathematics) term / (linguistics) argument

a scouting report (sports)

The three 密 (mitsu)s that should be avoided in order to avoid infection during the 2020 coronavirus pandemic, promoted by the Japanese government, translatable as "the three C's": 密(みっ)閉(ぺい) (mippei, “closed spaces”), 密(みっ)集(しゅう) (misshū, “crowded spaces”), 密(みっ)接(せつ) (missetsu, “close-contact settings”).

to distinguish; to discriminate