習い|ならいnarai[2]nakadaka (mid-high)

1. nounas is habit; the way life normally is
   栄枯盛衰えいこせいすいは世よの習ならい。↗

   A man's life has its ups and downs.

• Synonym習わしならわしNeutralCustoms and conventions of a community, as in 「土地の習わし」; it centres on social practice, while 「習い」 mostly appears as 「世の習い」 for the way of the world.
• Synonym習慣しゅうかんNeutralThe standard word for habits, personal or social, and the most common of these; unlike 「習い」, it is not tied to set phrases about the way of the world.
• Synonym慣習かんしゅうNeutralSocial conventions; formal and often legal in flavour, whereas 「習い」 is mostly set phrases about the way of the world.
• Synonym慣行かんこうNeutralEstablished practices as commonly carried out; leans business and legal usage, unlike 「習い」, which mostly means the way of the world.
• Synonym風習ふうしゅうNeutralWays and customs handed down in a particular region; unlike 「習い」, it points to local practice, not the way of the world.
• Synonym風俗ふうぞくNeutralManners and customs of a time or place; nowadays often shorthand for the sex industry, and unlike 「習い」 it does not cover the way of the world.
• Synonym習俗しゅうぞくWrittenFolk customs and manners; an academic-flavoured written word, unlike 「習い」, which mostly means the way of the world.
• Related因習いんしゅうNeutralTired, undesirable old customs; pejorative, unlike 「習い」, which mostly describes the way of the world.
• Related恒例こうれいNeutralEvents held as a matter of course, at a fixed time or by custom, as in 「恒例行事」; unlike 「習い」, it is about regular events, not the way of the world.
• Related慣例かんれいNeutralEstablished practice and precedent; unlike 「習い」, it points to conventions rather than the way of the world.
• Related決まりきまりNeutralRules and regulations, also fixed routines as in 「お決まり」; unlike 「習い」, it is about rules rather than the way of the world.
• Related定例ていれいNeutralFor things held at fixed intervals or as routine — regular sessions, standard procedures; unlike 「習い」, it is about scheduled regularity, not the way of the world.
• RelatedしきたりNeutralOld rules and traditional ways of doing things handed down over time; unlike 「習い」, it names customs rather than the way of the world.
• Related古例これいWrittenOld precedents and former customs; written/formal prose, unlike 「習い」, which mostly means the way of the world.
• Related俗習ぞくしゅうWrittenWorldly, everyday customs of society at large; written/formal, whereas 「習い」 is mostly set phrases about the way of the world.
• Related旧例きゅうれいWrittenOld customs and traditions kept up over the years; written/formal, unlike 「習い」, which mostly means the way of the world.
• Related常例じょうれいWrittenThe usual, customary way of doing things; written/formal, whereas 「習い」 is mostly set phrases about the way of the world.
• Related風儀ふうぎWrittenManners, etiquette and prevailing ways of a time or place; written/formal, unlike 「習い」, which mostly means the way of the world.

Use 「習い」 for a habit or the way things normally are — mostly as the set phrases 「世の習い」 and 「習い性となる」. For social customs and traditional rules, say 「習わし」 or 「しきたり」; for habits, 「習慣」; for established practice, 「慣例」; for local customs, 「風習」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 習慣しゅうかん。
2. 世間せけんによくあること。
3. 東日本ひがしにほんの太平洋たいへいよう岸がん、北日本きたにっぽんの日本にっぽん海かいで冬ふゆに吹ふく北寄きたよりの強つよい風かぜ。関東かんとうでは北東ほくとうの風かぜ。
4. 「ならう」の連用形れんようけい。