24-letter words containing p, e, r, d, u
- skeleton in the cupboard — a scandalous fact or event in the past that is kept secret
- sulphur-crested cockatoo — a large Australian white parrot, Kakatoe galerita, with a yellow erectile crest
- superheterodyne receiver — a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal
- the long-term unemployed — people who have no job and have not worked for a long time
- the occupied territories — the areas of the West Bank, the Gaza Strip, and the Golan Heights occupied by Israel after the 1967 Six-Day War
- the proof of the pudding — If you say the proof of the pudding or the proof of the pudding is in the eating, you mean that something new can only be judged to be good or bad after it has been tried or used.
- to keep your eyes peeled — If you tell someone to keep their eyes peeled for something, you are telling them to watch very carefully for it.
- trisodium orthophosphate — a sodium salt of orthophosphoric acid having the formula Na3PO4
- ultra low sulphur diesel — a type of diesel fuel that has a low sulphur content
- usb adapter card support — (communications, software) A set of software extensions that provide support for USB adapter cards installed in the PCI bus or Cardbus slots in Macintosh computers that do not have built-in USB ports.
- wired equivalent privacy — (networking, standard) (WEP) IEEE 802.11:1999. A cryptographic privacy algorithm, based on the RC4 encryption engine, used to provide confidentiality for 802.11 wireless networks. WEP is intended to provide roughly the same level of confidentiality for wireless data as a wired LAN (Ethernet), which is NOT protected by encryption. WEP is often wrongly expanded as "Wireless Encryption Protocol". WEP is a protocol that provides encryption used on wireless networks but that's not what it stands for.
- yellow-bellied sapsucker — a woodpecker, Sphyrapicus varius, of eastern North America, having a red patch on the forehead and black and white plumage with a pale-yellow abdomen, and feeding on sap from trees.