expand

UK /ɪkˈspænd/ US /ɪkˈspænd/
verb 5

Definitions

verb

1

To change (something) from a smaller form or size to a larger one; to spread out or lay open.

You can expand this compact umbrella to cover a large table.

2

To increase the extent, number, volume or scope of (something).

A flower expands its leaves.

Then with expanded wings he steers his flight.

3

To express (something) at length and/or in detail.

4

To rewrite (an expression) as a longer, yet equivalent, sum of terms.

Use the binomial theorem to expand #123;(x#43;1)#125;⁴.

5

To become, by rewriting, a longer, yet equivalent, sum of terms.

The expression #123;(x#43;1)#125;⁴ expands to x⁴#43;4x³#43;6x²#43;4x#43;1.

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