The house - The shed or booth where they took their meals, and were sheltered from the sun in the heat of the day (see Genesis 33:17).
Related Commentaries of Ruth 2:7
Ruth 2:7
7 And she said, I pray you, let me glean and gather after the reapers among the sheaves: so she came, and hath continued even from the morning until now, that she tarried a little in the house.