24-letter words containing m, a, c, h, i, n
- thompson sub-machine-gun — a .45 calibre sub-machine-gun
- 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
- voluntary aid detachment — (in World War I) an organization of British women volunteers who assisted in military hospitals and ambulance duties
- work/go/run like a charm — If you say that something worked like a charm, you mean that it was very effective or successful.