16-letter words containing d, i, p, y
- schneider trophy — a trophy for air racing between seaplanes of any nation, first presented by Jacques Schneider (1879–1928) in 1913; won outright by Britain in 1931
- shorthand typing — shorthand and typing
- shorthand typist — A shorthand typist is a person who types and writes shorthand, usually in an office.
- simply-connected — (of a set or domain) having a connected complement.
- special delivery — (in the U.S. Postal Service) delivery of mail outside the regularly scheduled hours, by a special messenger, upon the payment of an extra fee.
- spiny-rayed fish — any of various fishes, as basses and perches, that have sharp, often pointed and usually rigid fin spines.
- standing cypress — a plant, Ipomopsis rubra, of the southern U.S., having feathery leaves and clusters of red and yellow flowers.
- the body politic — the people of a nation or the nation itself considered as a political entity; the state
- the devil to pay — Theology. (sometimes initial capital letter) the supreme spirit of evil; Satan. a subordinate evil spirit at enmity with God, and having power to afflict humans both with bodily disease and with spiritual corruption.
- to dip your toes — If you dip your toes into something or dip your toes into the waters of something, you start doing that thing slowly and carefully, because you are not sure whether it will be successful or whether you will like it.
- to pay dividends — If something pays dividends, it brings advantages at a later date.
- to put it mildly — to state it with or as if with restraint
- top drive system — A top drive system is a system which includes a motor that turns the drill string, used instead of the kelly.
- type ii diabetes — diabetes (def 4).
- typhoid bacillus — the bacterium Salmonella typhosa, causing typhoid fever.
- unpredictability — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- videodisc player — an electronic device for playing videodiscs through a television set.
- vinylidene group — the bivalent group C 2 H 2 , derived from ethylene.
- vinylpyrrolidone — Vinylpyrrolidone is a substance used as a binder in pharmaceuticals.