a thing (as a mirror) that, having a smooth surface, reflects the light falling on it.

developing; causing to expand or causing to become bigger.

a person who or thing that develops; a developer.

a chemical used to develop film, plates, etc.; a developer.

a man or boy whose work is tending, feeding, and currying horses; a groom.

beginning organising to begin or promoting (a business, undertaking, enterprise, etc.).

inciting (another) to some evil action.

a man who begins, secures financing for, and helps to organise an undertaking, as a business, venture, undertaking, etc.; a promoter.

a man who incites another person to some evil action; an instigator.

the fact of being engaged, employed in or occupied with (something).

a pioneer or founder.

he who decides, adjudges a litigation or law-suit; an arbitrator; a judge.

a woman who begins, secures financing for, and helps to organise an undertaking, as a business, venture, undertaking, etc.; a promoter.

a woman who incites another person to some evil action; an instigator.