| A | B |
| monologue | a long speech given by a character in a story, movie, or play |
| monotone | a way of talking or singing without raising or lowering the sound of your voice; talking in one tone |
| monotonous | used to describe something that is boring because it is always the same |
| unison | the act of saying or singing something together at the same time; as one |
| unicorn | an imaginary animal with one straight horn |
| unify | to cause people or things to be joined or brought together |
| unique | used to say that something or someone is unlike anything or anyone else |
| solitude | in a state or situation in which you are alone, usually because you want to be |
| solo | a piece of music that is performed by one singer or musician |
| solar | of or relating to the sun, which there is only one of |