18-letter words containing h, a, r, d, l, i
- the bird has flown — the person in question has fled or escaped
- the first sea lord — the senior of the two serving naval officers who sits on the admiralty board of the Ministry of Defence
- the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
- the-master-builder — a play (1892) by Ibsen.
- theodore gericault — (Jean Louis André) Théodore [zhahn lwee ahn-drey tey-aw-dawr] /ʒɑ̃ lwi ɑ̃ˈdreɪ teɪ ɔˈdɔr/ (Show IPA), 1791–1824, French painter.
- thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
- thrills and spills — If you refer to thrills and spills, you are referring to an experience which is exciting and full of surprises.
- to a grinding halt — If you describe a bad situation as grinding, you mean it never gets better, changes, or ends.
- transit theodolite — a theodolite having a telescope that can be transited.
- triarylmethane dye — any of the class of dyes containing three aryl groups attached to a central carbon atom: used chiefly for dyeing cotton, wool, and silk.
- withdrawal symptom — effects of stopping a drug
- world championship — an international competition in a particular sport or activity for people all around the world
- xenon hexafluoride — a colorless, crystalline compound, XeF 6 , that melts at 50°C to a yellow liquid, and boils at 75°C.