1. (noun) small opening (like a window in a door) through which business can be transacted

• grille
• wicket

2. (noun) framework consisting of an ornamental design made of strips of wood or metal

• fretwork
• latticework

1. (noun) an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions

• arrangement
• organisation
• organization
• system

2. (noun) small opening (like a window in a door) through which business can be transacted

• opening

3. (noun) framework consisting of an ornamental design made of strips of wood or metal

• framework

1. (noun) an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions

• bravais lattice
• crystal lattice
• space lattice

2. (noun) framework consisting of an ornamental design made of strips of wood or metal

• treillage
• trellis