| Manual - See Service Kit. |
| Marshaling Yard - A lot where trucks gather for orderly dispatch to show site. |
| Mask - To cover for painting or protection. |
| Masking Drape - A cloth used to cover storage or other unsightly areas. |
| Meter - The most common width for a backwall panel. (1 Meter = 39.37 inches) |
| Modular Exhibit - An exhibit constructed with interchangeable components designed to be set up in various arrangements and sizes. |
| Move-in - The date specified by show management for beginning exhibit installation. |
| Move-out - The date specified by show management for dismantling exhibits. |
| Multimedia - Combining two or more types of audio/visual support in a presentation. |