23-letter words containing l, e, t, h
- to win the popular vote — to get a majority as regards the votes cast by individual voters
- to wipe the slate clean — If you wipe the slate clean, you decide to forget previous mistakes, failures, or debts and to start again.
- tortoiseshell butterfly — any of several nymphalid butterflies of the genus Nymphalis, and related genera, having orange-brown wings with black markings
- track and field athlete — a sportsperson who participates in events that involve running, sprinting, throwing, jumping and walking
- traffic-light labelling — a system of food labelling in which red, amber, and green symbols are used to indicate whether the food contains high, medium, or low amounts of sugar, fat, salt, etc
- trans-new guinea phylum — the largest grouping of the non-Austronesian languages of Papua and New Guinea and the surrounding regions
- trigonal trisoctahedron — a trisoctahedron whose faces are triangles.
- turn a cold shoulder to — to treat with disdain; snub
- unconditional discharge — the release of a defendant without having to spend time on parole or probation
- universal character set — (character, standard) (UCS, ISO/IEC 10646) A 1993 ISO and IEC standard character set, also known as "Universal Multiple-Octet Coded Character Set". UCS comes in a 16-bit variant called UCS-2 and a 32-bit variant called UCS-4, which is composed of 16-bit UCS-2 "planes". So far only one 16-bit plane has been defined, which is known as the Basic Multilingual Plane. The implementation of UCS is still in its infancy, though some moves, such as the Java language defining a character to be 16 bits, are suggestive.
- until hell freezes over — If you say that you will do something until hell freezes over, you are emphasizing that you will do it for a very long time or for ever.
- ventricular tachycardia — a cardiac arrhythmia in which the muscles of the ventricles contract irregularly in a rapid, uncoordinated manner, impairing the normal pumping of blood.
- vestibulocochlear nerve — either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing
- viscount horatio nelson — Viscount Horatio, 1758–1805, British admiral.
- while the going is good — If you say that someone should do something while the going is good, you are advising them to do it while things are going well and they still have the opportunity, because you think it will become much more difficult to do.
- yellow-throated warbler — a warbler, Dendroica dominica, of the eastern U.S., having a yellow throat and breast.