The term expand is from early 15c., "spread out, open out, spread flat, extend widely;" also transitive, "cause to grow larger;" from Anglo-French espaundre, Old French espandre "spread, spread out, be spilled," and directly from Latin expandere "to spread out, unfold, expand," from ex "out" (see ex-) + pandere "to spread, stretch."

Expand a customer's thinking by asking a provocative question to encourage a customer to think differently. Change is about thinking differently. For example, "How would you compare the US to Japan?" Expand your customer's mind to expand revenue.

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Expand a wide net, grow the smallest audience, spill into ether