The plural of expansion; instances or results of something becoming larger, more widespread, or more detailed.
From expansion (late 16th century), derived from Latin 'expansus' (spread out), past participle of 'expandere' (to spread out). The root combines 'ex-' (out) and 'pandere' (to spread or open).
The word 'expand' literally means to 'spread out' or 'unfold'—which is why when you expand a map, expand your mind, or expand a business, you're doing something that spreads further in some direction. This same root 'pandere' also gives us 'panda' (through Sanskrit), connecting the animal's name to a sense of unfolding or expanding parts of the body.
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