[plɑːk], (Noun)

Definitions:
- an ornamental tablet, typically of metal, porcelain, or wood, that is fixed to a wall or other surface in commemoration of a person or event

- a sticky deposit on teeth in which bacteria proliferate
(e.g: plaque around gum margins can lead to gingivitis)

- a small, distinct, typically raised patch or region on or within the body resulting from local damage or deposition of material, such as a fatty deposit on an artery wall in atherosclerosis or a site of localized damage of brain tissue in Alzheimer's disease

- a flat counter used in gambling


Phrases:

Origin:
mid 19th century: from French, from Dutch plak ‘tablet’, from plakken ‘to stick’