几何 (jǐ hé) is a classical Chinese compound with dual meanings. Literally, it means 'how many measures' — 几 (jǐ) means 'how many' or 'a few', and 何 (hé) means 'what' or 'how'. In modern usage, it primarily functions as a formal or literary term meaning 'how much' or 'to what extent', often appearing in questions about quantity, degree, or time — for example, '几何时间？' (How much time?).

In mathematics, 几何 is the standard term for 'geometry', reflecting its historical roots in measuring land and spatial relationships ('measuring how much'). While the 'how much' sense is rare in casual speech today (replaced by 多少), it remains common in written language, academic contexts, and fixed expressions like '几何学' (geometry). The word carries a formal, scholarly tone and is rarely used in everyday conversation.