An open area free of woods and buildings
The correct answer is “field”.
Explanation:
“Field” has numerous meanings, most of which deal with an area that is relatively open and spacious. When it comes to land, various sports and agriculture use the term as one of their basic concepts.

Fields usually lack any large objects that would impede the ability of people to move around, such as trees or buildings. As such, the definition provided in the question is highly appropriate to the word “field”.
While “field” is most likely the intended answer to the question, there are numerous synonyms that would apply. Examples include grassland, meadow, pasture, plot, enclosure, and others. However, these meanings tend to be more restrictive and not adhere to the definition completely.
Work Cited
"An open area free of woods and buildings." Custom-Writing, 27 Mar. 2020, custom-writing.org/qna/an-open-area-free-of-woods-and-buildings/.
1. Custom-Writing.org. "An open area free of woods and buildings." March 27, 2020. https://custom-writing.org/qna/an-open-area-free-of-woods-and-buildings/.
Bibliography
Custom-Writing.org. "An open area free of woods and buildings." March 27, 2020. https://custom-writing.org/qna/an-open-area-free-of-woods-and-buildings/.
References
Custom-Writing.org. 2020. "An open area free of woods and buildings." March 27, 2020. https://custom-writing.org/qna/an-open-area-free-of-woods-and-buildings/.
Reference
Custom-Writing.org. (2020, March 27). An open area free of woods and buildings. Retrieved from https://custom-writing.org/qna/an-open-area-free-of-woods-and-buildings/
References
Custom-Writing.org. (2020) 'An open area free of woods and buildings'. 27 March.