展開（てんかい、tenkai）
- development

The Japanese word 展開 てんかい primarily means "development," "expansion," "unfolding," "deployment," or "evolution." It signifies a process of something opening up, broadening, or progressing. It can apply to a wide range of contexts, including stories, situations, events, strategies, and even physical spaces. Think of it as something moving from a closed or contained state to a more open or elaborated one. It implies a forward movement or a progression from an initial state to a more complex or extended one.

⚫︎物語の展開 Translation: The development of the story. ⚫︎新しい事業を展開する Translation: To develop a new business. ⚫︎議論が展開される Translation: The discussion unfolds.

展開 てんかい is a versatile word, suitable for both formal and informal situations. ⚫︎It's common in discussing plans, strategies, and scenarios: 計画を展開する（to develop a plan). ⚫︎It is frequently used to talk about the plot or progression of a story, a game or a movie. ⚫︎You can also use it to describe the deployment of troops or resources: 部隊を展開する（to deploy troops). The specific context dictates the nuance.

⚫︎展開 てんかい is written using the kanji 展開. ⚫︎The reading is てんかい in hiragana. ⚫︎There is only one standard way to write this word. The okurigana is fixed.

⚫︎発展（はってん） - development, growth ⚫︎進展（しんてん） - progress, development ⚫︎拡大（かくだい） - expansion, enlargement ⚫︎展開（てんかい） - This word itself is also a synonym. ⚫︎発展（はってん） - development, growth

⚫︎縮小（しゅくしょう） - reduction, contraction ⚫︎停滞（ていたい） - stagnation, standstill ⚫︎終焉（しゅうえん） - end, termination ⚫︎収束（しゅうそく） - convergence

映画の後半で、物語は予想外の展開を見せた。 ・Translation: In the second half of the movie, the story took an unexpected turn. ・Explanation: This sentence uses 展開 to describe the unexpected progression of the movie's plot.

このプロジェクトは、来年、海外市場へ展開する予定です。 ・Translation: This project is scheduled to expand into overseas markets next year. ・Explanation: This sentence uses 展開 to describe the expansion of a business or project into new markets.

The word 展開 てんかい is composed of two kanji: 展 (ten), meaning "to open up, to spread," and 開 (kai), meaning "to open, to unfold." Together, they precisely convey the meaning of the word: to unfold, to develop, or to spread out.