plainborders
nounUK /ˈpleɪnˌbɔːdəz/
US /ˈpleɪnˌbɔːrdərz/
Plain borders are simple lines around the edge of something, with no fancy designs.
The teacher drew plain borders around each picture on the worksheet.
OTHER MEANINGS
2. The ordinary outer edges of a place or region, without special features.
The plain borders of the town are just open fields.
3. Basic, undecorated lines separating sections on a page or screen.
Use plain borders to keep the table easy to read.
4. Simple boundaries between two areas that are not marked with anything fancy.
The two gardens share plain borders made of stones.