24-letter words containing a, s, t, h, m, i
- to lay something to rest — If you lay something such as fears or rumours to rest or if you put them to rest, you succeed in proving that they are not true.
- 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