expand

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

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

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

“A flower expands its leaves.”

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

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

“Use the binomial theorem to expand {(x+1)}^4.”

(of an expression) To become, by rewriting, a longer, yet equivalent sum of terms.

“The expression {(x+1)}^4 expands to x^4 + 4x^3 + 6x^2 + 4x + 1.”

To multiply both the numerator and the denominator of a fraction by the same natural number yielding a fraction of equal value

To change from a smaller form/size to a larger one.

“Many materials expand when heated.”

To increase in extent, number, volume or scope.

To speak or write at length or in detail.

“He expanded on his plans for the business.”

To feel generous or optimistic.