tester

One who tests, tries, assays, or proves.

Any instrument or apparatus used in testing: as, a steam-gage tester; a vacuum-tester.

A name given to the shillings coined by Henry VIII., and to sixpences later (compare teston); also, in modern slang, a sixpence.

A canopy.

Specifically— The frame which connects the tops of the posts in a four-post bedstead, and the material stretched upon it, the whole forming a sort of canopy.

In architecture, a flat canopy, as over a pulpit or a tomb.

A head-piece; a helmet.

An old French silver coin, originally of the value of about eighteen pence, subsequently reduced to ninepence, and later to sixpence, sterling. Hence, in modern English slang, a sixpence; — often contracted to tizzy. Called also teston.

A headpiece; a helmet.

A flat canopy, as over a pulpit or tomb.