mechanism

mechanical pencil – Pushes graphite out by a mechanism such as a spring or a screw. More…

pinwheel – Originally a mechanism in a clock. More…

gadget – May come from French gachette, which is or has been applied to various pieces of mechanism, or from Gaget, the person who created the first so-called gadgets—miniature Statues of Liberty sold in Paris—or from a Navy term for a tool or mechanical device for which one could not recall the name. More…

rack, pinion – Rack is the linear gear and pinion is the circular gear in a mechanism. More…

obligation

obstriction – An obligation. More…

convert into, convert to – Convert into means to change from one thing to another; convert to means to switch allegiance, loyalty, or obligation. More…

delinquent – Literally “completely having left” one’s duty or obligation. More…

likely, liable – Use likely if you mean “probable, expected”; use liable if you mean “bound by law or obligation.” More…

shrubs

boscage – A mass of growing trees or shrubs—or a depiction of a wooded landscape. More…

nature strip – An area of grass beside a roadway, possibly with a few trees or shrubs, lying between the footpath part and the roadway proper. More…

balm, balsam – Greek balsamon is the source of both balm and balsam; it was an oily resin of various trees and shrubs. More…

topiary – Describing shrubs and trees that are trimmed, it is derived from Latin topiarius, “ornamental gardener.” More…

research

disquisition – A diligent or systematic search, a thorough investigation or research. More…

primary source – A direct source of information or research, a document not emended by a third party. More…

secondary source – Information or research that is derivative, such as a comment by a historian, an encyclopedia article, or a critical essay. More…

Rh factor – Named for the rhesus monkeys used in research to identify blood types. More…

punctuation

em dash, en dash – The em dash is the long dash used in punctuation whose length is based on the width of the letter M; the en dash is shorter (the width of an N) and the hyphen is even shorter. More…

punctual – From Latin punctum, “point,” it can mean “pertaining to punctuation,” or “of or relating to a point in space.” More…

square brackets, parentheses, braces – Square brackets were formerly called crotchets, round brackets are commonly called parentheses, and curly brackets are called braces; the punctuation called brackets derives from the bookshelf type, implying that, in writing, these marks “lift up” a section of a sentence. More…

stigmeology – The art of punctuation. More…