～日
～にち · ～nichi · JLPT N5 · noun
date
📅 日 = sun = day; nichi counts the suns: 11日 = the 11th, or 11 days
日 began as a drawing of the sun, and one sun crossing the sky is one day. As a suffix read nichi, it turns a number into a date or a span: 十一日 (jūichi-nichi) is the 11th of the month or eleven days. Sound hook: nichi as in Nichiyōbi, Sunday.
日 — pictograph of the sun
日 is a pictograph of the sun, originally drawn as a circle with a dot or stroke inside representing the sun's substance. Over time the round shape was squared off into the modern rectangular form. It means 'sun' and by extension 'day'.
～か · ～ka · JLPT N2 · noun
days
📅 ka as in calendar: futsuka, mikka, yokka count days on the calendar
日 is read か in native day counts: 2 futsuka, 3 mikka, 4 yokka, up to 10 tooka, plus 14 and 24 (yokka) and 20 (hatsuka). Other day counts use にち, e.g. 11 juuichinichi.
日 — pictograph of the sun
日 is a pictograph of the sun, originally drawn as a circle with a dot or stroke inside representing the sun's substance. Over time the round shape was squared off into the modern rectangular form. It means 'sun' and by extension 'day'.
～じつ · ～jitsu · JLPT N2 · noun
day
📅 Sounds like jiu-jitsu: one day of training at a time
日 began as a sun glyph, and the sun marks a day. Jitsu is its Chinese-derived reading, used in compounds like 平日 heijitsu (weekday), 休日 kyūjitsu (day off) and 本日 honjitsu (today).
日 — pictograph of the sun
日 is a pictograph of the sun, originally drawn as a circle with a dot or stroke inside representing the sun's substance. Over time the round shape was squared off into the modern rectangular form. It means 'sun' and by extension 'day'.