1. to or on a lower floor of a building
2. on or to the ground floor

1. located on a lower floor

1. the lower floor or floors of a building

Examples

• She went downstairs to get breakfast.
• I heard voices coming from downstairs.
• The downstairs bathroom needs cleaning.
• We keep our laundry room downstairs.
• The downstairs is much cooler in summer.
• He called up from downstairs.
• The downstairs neighbors are very quiet.