In the phrase "the scarecrow won an award because he was outstanding in his field," the word with multiple meanings is "field."
- In one sense, "field" refers to a physical area of land, such as a field where crops grow or where a scarecrow might be found.
- In another sense, "field" can refer to an area of expertise or profession, suggesting that the scarecrow is distinguished in a particular domain or subject.
The pun arises from the double meaning of "outstanding in his field," which plays on both the literal and figurative interpretations of "field."