半分
はんぶん
hanbun
= half
半分 is the everyday word Japanese speakers reach for whenever something needs splitting in two — a piece of cake, a bill at a restaurant, or even a feeling that’s only half sincere. It’s simple, practical, and used constantly in daily life.
半分 combines han (半, “half”) with bun (分, “part/portion”), literally meaning “half portion.” As a noun, it names an exact half: hanbun kudasai (半分ください) means “half, please,” and kids often say hanbunko (半分こ) when they want to split a snack evenly with a friend. As an adverb, 半分 softens a statement to mean “half-” or “partly,” as in hanbun jōdan de (半分冗談で, “half-jokingly”) or hanbun neteru (半分寝てる, “half asleep”). With a verb, hanbun ni wakeru (半分に分ける) or hanbun ni suru (半分にする) both mean “to cut/split in half.” Note that the same kanji 分 is read differently in other words — in han’gaku (半額, “half price”) the 半 alone means “half,” and in time words like sanjuppun (30分, “30 minutes”) 分 switches to the reading fun/pun and means “minutes,” not “portion.” Don’t let the shared kanji confuse the meaning.
The reading is hanbun, not hanfun — a common misread since 分 can also be fun/pun elsewhere. For sharing something evenly with a friend, especially among kids, the natural word is hanbunko (半分こ), not a stiff hanbun ni shimashō. When 半分 attaches to an adjective or verb, it works like an English “half-,” softening the statement rather than being literal: hanbun honki (半分本気) means “half serious,” not exactly 50% serious in a measurable sense. Also watch for confusion with words that use 半 alone as a prefix, like hangaku (半額, “half price”) or hantoshi (半年, “half a year”) — those don’t use 分 at all.
Everyday use
このケーキ、半分こしよう。
Kono kēki, hanbunko shiyō.
Let’s split this cake in half.
Casual / Social Media
正直、半分諦めてるけど、まだ頑張ってみる。
Shōjiki, hanbun akirameteru kedo, mada ganbatte miru.
Honestly, I’ve half given up, but I’ll still try.
Formal / Cultural context
お会計は半分ずつでお願いします。
Okaikei wa hanbun-zutsu de onegaishimasu.
Could we split the bill in half, please?
Splitting things evenly is woven into everyday Japanese social life, and 半分 is the word that makes it happen. Kids trade half a rice ball or half a candy bar with the casual call of hanbunko, and the habit carries into adulthood: coworkers split a shared snack, friends divide a plate of fries, and splitting a restaurant bill in half is often the default rather than an awkward negotiation. The word carries a small note of fairness and closeness — offering someone 半分 of what you have is a quiet, low-key gesture of goodwill.
半分 also plays a role in Japanese indirectness, where flatly stating an opinion can feel too blunt. Saying something is hanbun jōdan (half-joking) or that you’re hanbun akirameteru (half given up) lets a speaker express a real feeling while leaving room to back off or downplay it if needed. This hedging use of “half-” shows up constantly in casual conversation, letting people be honest about mixed feelings — serious but not too serious, hopeful but not fully — without committing to one extreme.