(idiomatic, obsolete, UK, thieves' cant) A Dissenter; a Protestant who is not a follower of the Established Church (i.e. Church of England, Church of Scotland, etc).

Acronym of building, antenna-tower, span, earth.

(obsolete) A contriver; an inventor; one who makes engines. / Misspelling of engineer.

Alternative form of sarlyk (“a yak”)