The rapid expansion of urban areas often leads to the loss of natural habitats for many species.
城市区域的迅速扩张常常导致许多物种自然栖息地的丧失。
Historian Ian Farrow agrees that the mechanical clock mattered but argues that the expansion of railway networks, which required synchronized timekeeping across distant towns, was an equally necessary precondition for the widespread adoption of standardized time.
From a Cross-Text Connections question · Craft and Structure
A labor economist argues that a recent expansion of paid family leave in a particular state did not lead to reduced hiring among small businesses, contrary to some predictions.
From a Command of Evidence: Textual question · Information and Ideas
The historian's account of the railway's expansion proceeds strictly by decade from the 1850s to the 1900s, pausing at each decade only to describe major financial crises and how they were resolved.
From a Text Structure and Purpose question · Craft and Structure
Which choice best defines “expansion”?
C — Becoming bigger. “expansion” means becoming bigger.
Which word means “becoming bigger”?
A — expansion. “expansion” means becoming bigger.
expansion — becoming bigger. In Chinese: 扩张，扩展.
expansion is pronounced /ɪkˈspænʃn/.
The rapid expansion of urban areas often leads to the loss of natural habitats for many species. (城市区域的迅速扩张常常导致许多物种自然栖息地的丧失。)
growth, increase, enlargement — all close in meaning to expansion (becoming bigger).
contraction, reduction — each the opposite of expansion (becoming bigger).
Yes. expansion is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
expand(extension)+ion