固定形式的典禮
這是核心本身：宗教或社會場合上那套固定不變的言語與動作。
ceremony · noun · C2
A set of words and actions always done the same way, to mark an important religious or social occasion.
儀式
核心畫面
A fixed set of words and actions, repeated the same way every time — the form matters as much as the content.
一套「每次都照同樣順序走」的動作與說詞：先做什麼、再說什麼、由誰來做，都是定好的。重點不只在做了什麼，而在「照著那個…更多收起
一套「每次都照同樣順序走」的動作與說詞：先做什麼、再說什麼、由誰來做，都是定好的。重點不只在做了什麼，而在「照著那個固定形式走」這件事本身——所以婚禮、祭典、宣誓都有 ritual，因為大家都知道接下來會發生什麼、也都同意照這個樣子走一遍。From the word’s history
From Latin rītuālis (adjective), from rītus "rite, religious ceremony, customary observance" + -ālis; the modern noun is a later use of the adjective. The root rītus already means "an established, customary way of doing a thing", which is exactly the fixed-form idea the modern word carries.
來自拉丁文 rītuālis（形容詞），由 rītus（儀式、既定的做法）加 -ālis 而成；英文其實先有形容詞，名詞是後來從形容詞轉過來的。這解釋了兩件事：一是為什麼形容詞和名詞的意思幾乎重疊，二是為什麼「宗教儀式」和「每天固定的習慣」能共用一個字——拉丁文 rītus 本來就同時涵蓋「宗教典禮」和「照老規矩辦的事」。
Wiktionary, "ritual" (etymology section, as supplied in the entry's attested origins)
Three branches
日常裡的固定流程
把典禮的「固定順序」搬進私人生活：沒有神聖成分，但同樣每次照同樣的步驟走。
a fixed routine · noun · C2
Something you always do in the same order, as part of your regular day.
慣例
只剩形式的空話
固定形式的另一面：當形式被保留、心意卻不在了，剩下的就只是「照規矩該說的話」。
done out of habit, not sincere · adjective · C2
Said or done because people expect it, not because the speaker truly means it.
例行的
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
ritualadj/ˈɹɪt͡ʃ.u.əl/
- 1
Related to a rite or repeated set of actions.
- They performed the ritual lighting of the candles.
- These verses are the basis for the practice of wearing a prayer shawl (tallit) with a ritual fringe (tzitzit) on each of its four corners
ritualnoun/ˈɹɪt͡ʃ.u.əl/
- 1
A rite; a repeated set of actions, especially in religious contexts.
- The priests carried out the religious ritual carefully.
- Despite their good intentions, family members who participate in OCD rituals help reinforce the problem.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。