Things That Are Square with E

• Envelope

  Envelopes are often rectangular or square mailers

• etch a sketch

  Etch A Sketch screen is famously in a square frame

• Egg carton

  Egg cartons often come as square-ish trays

• empty box

  An empty box is often cube/square‑shaped

• Egg box

  Egg boxes are usually cube‑like, close to square

• Eagles CD case

  CD cases are square plastic boxes for discs

• Envelopes

  Some envelopes are classic square greeting card style

• Equilateral square

  A square with equal sides, definitionally square

• Electric box

  Electrical boxes are often cube/square boxes

• Egg tray

  Egg trays often are square grids for eggs

• Etch-a-sketch

  Classic Etch A Sketch has a rectangular/square face

• Egg cartons

  Egg cartons are often made as square-ish boxes

The words in the list Things That Are Square with E come from players of the word game City, Country, River.