24-letter words containing a, p, o, t, h
- 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
- 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
- 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
- what are you playing at? — If you ask what someone is playing at, you are angry because you think they are doing something stupid or wrong.
- when the balloon goes up — when the trouble or action begins