24-letter words containing c, h, o, i, r, p
- stereographic projection — a one-to-one correspondence between the points on a sphere and the extended complex plane where the north pole on the sphere corresponds to the point at infinity of the plane.
- 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
- supportive psychotherapy — a type of psychotherapy that seeks to reduce psychological conflict and strengthen a patient's defenses through the use of various techniques, as reassurance, suggestion, counseling, and reeducation.
- synchronous graphics ram — Synchronous Graphics Random Access Memory
- telephony user interface — (communications) (TUI) Either a software interface to telephony (e.g. a phone-capable PC) or a DTMF-based interface to software (e.g. voicemail).
- 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
- to light the touch paper — if someone lights the touch paper or lights the blue touch paper, they do something which causes anger or excitement
- to play your cards right — If you say that someone will achieve success if they play their cards right, you mean that they will achieve success if they act skilfully and use the advantages that they have.
- tri-nations championship — (from 1996–2011) the annual tournament in which the national sides representing Australia, New Zealand, and South Africa compete; in 2012 Argentina entered and the competition became the Rugby Championship
- variable pitch propeller — a propeller in which the angle of the blades with regard to air flow can be adjusted while it is in operation