習慣
しゅうかん
shuukan
= habit; custom; practice; routine
習慣 (shuukan) captures the idea of a behavior that has become second nature through repeated practice — not just something you do, but something you have trained yourself to do until it feels automatic. The word carries a sense of deliberate cultivation, distinguishing it from impulses or passing tendencies.
習慣 refers both to personal habits an individual builds over time and to customs shared across a community or society. On the personal level, 毎朝ジョギングする習慣 (the habit of jogging every morning) describes a self-cultivated routine. On the social level, 日本の食事の習慣 (Japanese dining customs) describes collective, culturally embedded behavior.
A key distinction: 習慣 differs from クセ (kuse), which refers to an unconscious quirk or mannerism — often one you did not choose and may not even notice. 習慣 implies intentionality and repetition that led to internalization. You form a 習慣; a クセ tends to develop on its own. Another related word, 慣習 (kanshuu), overlaps with the social-custom sense of 習慣 but is more formal and usually reserved for established societal conventions or norms.
Learners sometimes mix up 習慣, 文化 (bunka, culture), and 伝統 (dentou, tradition). 文化 is the broadest term for a society’s overall way of life and values. 伝統 refers specifically to practices passed down across generations with historical weight. 習慣 focuses on the behavioral, repeated dimension — what people actually do regularly, whether as individuals or as a group.
One important compound to know is 生活習慣病 (seikatsu shuukan byou), meaning “lifestyle disease” — conditions like type 2 diabetes or hypertension linked to habitual diet and exercise patterns. This term appears frequently in Japanese health media and government campaigns, making 習慣 a word with real medical and public-health relevance beyond casual conversation.
習 (shuu) combines the character for “wings” (羽) over the character for “white” (白), evoking a bird practicing flight — repeated movement until it becomes natural. It means to learn or practice. 慣 (kan) means to become accustomed or familiar, used in words like 慣れる (nareru, to get used to something). Together, 習慣 literally conveys “practicing until accustomed” — the process by which deliberate repetition becomes effortless routine.
Everyday use
私は毎朝コーヒーを飲む習慣があります。
Watashi wa maiasa koohii wo nomu shuukan ga arimasu.
I have a habit of drinking coffee every morning.
Casual / Social Media
新年に新しい習慣を始めようとしている人は多い。
Shinnen ni atarashii shuukan wo hajimeyou to shite iru hito wa ooi.
Many people try to start new habits at the new year.
Formal / Cultural context
靴を脱いで家に入るのは日本の習慣です。
Kutsu wo nuide ie ni hairu no wa Nihon no shuukan desu.
Removing your shoes before entering a home is a Japanese custom.
In Japanese martial arts and traditional arts such as tea ceremony (茶道, sadou) and calligraphy (書道, shodou), the concept of 型 (kata) — a prescribed form or pattern practiced repeatedly — is deeply intertwined with 習慣. Students spend years repeating the same movements until they become habitual, the underlying belief being that correct form internalized through 習慣 eventually frees the practitioner to express deeper artistry. This philosophy, sometimes called 守破離 (shu-ha-ri), treats deliberate habit-formation as the essential first stage of mastery.
The notion of building 習慣 has also taken on significant cultural weight in Japanese self-improvement discourse. Translated editions of books on habit formation, as well as home-grown works on 朝活 (morning routines) and 継続力 (the power of consistency), regularly top Japanese bestseller lists. The idea that small, repeated actions compound into meaningful change resonates strongly in a culture that values incremental effort (コツコツ, kotsukotsu) over sudden transformation — making 習慣 a word that bridges everyday practicality and a deeper Japanese orientation toward patient, sustained practice.