| A | B |
| monochrome | having one color or shades of one color |
| monocle | an eyeglass for one eye |
| monolingual | speaking or writing in only one language |
| monolith | made from one large block of stone |
| monologue | aq long speech given by only person |
| monophobia | a fear of being the only one there or fear of being alone |
| monopoly | control of a prorduct or service by one company |
| monorail | a track or subway for train cars that only has one rail |
| monosyllabic | having only one syllable |
| monotone | a speech in which every word has one tone of voice |
| mono | one |