25-letter words containing a, b, s, e, n

observational equivalence — Two terms M and N are observationally equivalent iff for all contexts C[] where C[M] is a valid term, C[N] is also a valid term with the same value.
off-balance sheet reserve — a sum of money or an asset that should appear on a company's balance but does not; hidden reserve
on the big/small etc side — If you say that something is on the small side, you are saying politely that you think it is slightly too small. If you say that someone is on the young side, you are saying politely that you think they are slightly too young.
outside broadcasting unit — a mobile studio from which broadcasts are made
personalized number plate — a car registration plate that has the owner's initials or name on it
pit one's wits against sb — If you pit your wits against someone, you compete with them in a test of knowledge or intelligence.
portable network graphics — (file format) /ping/ (PNG) An extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-colour, greyscale and truecolour images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits. PNG is designed for on-line viewing applications, such as the World Wide Web, so it is fully streamable with a progressive display option. PNG is robust, providing both full file integrity checking and simple detection of common transmission errors. Also, PNG can store gamma correction and chromaticity data for improved colour matching on heterogeneous platforms.
public key infrastructure — (cryptography, communications) (PKI) A system of public key encryption using digital certificates from Certificate Authorities and other registration authorities that verify and authenticate the validity of each party involved in an electronic transaction. PKIs are currently evolving and there is no single PKI nor even a single agreed-upon standard for setting up a PKI. However, nearly everyone agrees that reliable PKIs are necessary before electronic commerce can become widespread.
public relations exercise — something which is done for the sake of attracting favourable publicity
put sb/sth/swh on the map — If you say that someone or something put a person, thing, or place on the map, you approve of the fact that they made it become well-known and important.
put/set sb's mind at rest — To put someone's mind at rest or set their mind at rest means to tell them something that stops them worrying.
saddle block (anesthesia) — a method of spinal anesthesia, often used during obstetric delivery, that produces anesthesia in that area of the body that would be in contact with a saddle during horseback riding
saybolt universal seconds — a US measurement of viscosity similar in type to the British Redwood seconds
single wingback formation — an offensive formation in which the wingback lines up outside of and about one yard behind an end, the quarterback lines up lateral to the wingback but about midway between the same end and the center, the fullback is three or four yards behind the middle of the line, and the tailback lines up one yard behind the fullback on the other side of the line from the wingback and quarterback.
spectral band replication — (audio, compression) (SBR) Guessing the nontransmitted higher frequency range of a compressed audio file by some helper bits (transmiited with the stream) and the transmitted base band. SBR allows a restoration (not reconstruction) of the upper frequency range without lots of bits. It was developed by Coding Technology, and is useful for medium and high quality coding at low and medium data rates. It is used by Digital Radio Mondiale and MP3 Pro.
subscriber trunk dialling — a service by which telephone subscribers can obtain trunk calls by dialling direct without the aid of an operator
the ball is in sb's court — If you say that the ball is in someone's court, you mean that it is his or her responsibility to take the next action or decision in a situation.
the ball is in your court — you are obliged to make the next move
the empire state building — a very high skyscraper in New York City
the knives are out for sb — If a lot of people want something unpleasant to happen to someone, for example if they want them to lose their job, you can say that the knives are out for that person.
to be in the catbird seat — to be in a very good situation
to be in the driving seat — If you say that someone is in the driving seat, you mean that they are in control in a situation.
to be on first-name terms — (of two people) knowing each other well enough to call each other by their first names, rather than having to use a more formal title.
to be on the naughty step — to experience public disfavour, usually because of perceived wayward behaviour
to give someone a bunk-up — to give someone a competitive advantage in order to help them get on better than they would otherwise have done
to live beyond your means — If someone is living beyond their means, they are spending more money than they can afford. If someone is living within their means, they are not spending more money than they can afford.
to read between the lines — If you read between the lines, you understand what someone really means, or what is really happening in a situation, even though it is not said openly.
under the aegis of sb/sth — Something that is done under the aegis of a person or organization is done with their official support and backing.
verbum sat sapienti (est) — a word to the wise (is) enough
what is sb/sth doing here — If you ask what someone or something is doing in a particular place, you are asking why they are there.
word sense disambiguation — the process of identifying which sense of a word is being used in a particular context
yakut autonomous republic — an autonomous republic in the NE Russian Federation in Asia. 1,198,146 sq. mi. (3,103,200 sq. km). Capital: Yakutsk.

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