- 1過多（書面，常帶「多到過頭」）
A plethora is a very large number of something, usually more than you need, and sometimes more than you really want. The usual shape is a plethora of + things: a plethora of choices, a plethora of rules. It is a noun, and it sounds educated — even a little . News writers like it; so do students who want a fancy word for “many.” Though actually, in careful use there is often a tiny sigh inside it: not just “lots,” but “too many.” If you only mean a happy large amount, plenty of or a lot of is more natural. Long ago doctors also used plethora for too much blood in the body; almost nobody means that now.
From the word’s history
From Late Latin plēthōra, from Greek plēthōra 'fullness', from plēthō 'to be full'.
源自希臘文 πληθώρα「充滿、飽足」，來自 πλήθω「充滿」。
組成From Late Latin plēthōra, from Ancient Greek πληθώρα (plēthṓra, “fullness, having had too much”), from πλήθω (plḗthō, “to be full”) + -η (a noun ending).
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，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。
plethoranoun/ˈplɛθəɹə/
- 1
An excessive amount or number; an abundance.
- The menu offers a plethora of cuisines from around the world.
- 1817, Francis Jeffrey, review of Lalla Rookh, in the Edinburgh Review He labours under a plethora of wit and imagination.
- 2
medicinesciencesExcess of blood in the skin, especially in the face and especially chronically.
- [Y]our Character at Present is like a Person in a Plethora, absolutely dying of too much Health—
- The food necessary for the maintenance of his dog, a bull-terrier, in the condition of ferocious plethora to which it was accustomed, he generously declared himself willing to pay for out of his own pocket, […]
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。