亿 🔊

网络内容摘要 (Web Content Summary):

亿的主要含义是“极大、无数、无限”，在现代汉语中常指“一万万”（即十的八次方，100,000,000）。 Yi primarily means "an extremely large number, innumerable, or infinite." In modern Chinese, it specifically refers to "one hundred million" (10^8).

• 字形与起源：“亿”本为会意字，古代用作表示“思考、揣度”，后引申为数量极大。在小篆中形状与“意”相似，体现思考、推测的含义。 Character origin: "亿" was originally an ideogram related to "thinking" or "conjecture." Later, it extended to represent an extremely large quantity. Its ancient form resembles that of "意" (meaning, thought), reflecting the concept of speculation or estimation.

• 早期用法：古文中“亿”作动词，表示“揣测、思考”（例：“心亿则乐”——《左传·昭公二十一年》），或作形容词表示“无限的、极多的”。 Early usage: In classical texts, "亿" can be a verb meaning "to estimate or consider" (e.g., "心亿则乐" from Zuozhuan), or an adjective meaning "infinite" or "numerous."

• 现代常用词：“亿”通常作为数量词出现，例如“十亿”（billion）、“亿万”（countless, millions and millions）。相关词有：亿安、亿康（多为吉祥用语）。 Common modern usage: "亿" usually appears as a numeral, as in "十亿" (billion) or "亿万" (countless, millions and millions). Related phrases like "亿安" and "亿康" are often used in auspicious contexts.

• 易混淆点：需注意“亿”与“万”（ten thousand）、“兆”（trillion/兆，depending on context）等数字词区分，避免混淆数量级。 Easy confusion: Be careful to distinguish "亿" (one hundred million) from "万" (ten thousand) and "兆" (trillion, though the meaning of "兆" can vary by context) to avoid confusion over scales.