1. A buffoon.

2. A buffoon in a pantomime, dressed in parti-coloured clothes, who plays tricks to divert the audience.

3. To make sport by playing ludicrous tricks.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• harlaquin,
• harlequine,
• harliquin,
• harliquins,
• harlequinn,
• harliquine,
• halequin,
• harlaquinn,
• harrelquin,
• harliqin,
• harleqin,
• harlequn,
• herlequin,
• harlequinde,
• haraquin,
• harliqun,
• hurliquin,
• harlequinne,
• harlyquinn,
• hallequinn

• harlequinade,
• harrelson,
• harless.

The adjective form of the word "harlequin" is "harlequinesque".

The plural of the "harlequin" can be the "harlequins".

The singular of the "harlequin" can be the "harlequin".