18-letter words containing l, e, g, h, a
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- spherical triangle — a triangle formed by arcs of great circles of a sphere.
- stinking chamomile — mayweed.
- strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
- technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.
- telephone exchange — a telecommunications facility to which subscribers' telephones connect, that switches calls among subscribers or to other exchanges for further routing.
- the beautiful game — football
- the class struggle — the continual conflict between the capitalist and working classes for economic and political power
- the electronic age — the electronic age began when electronic equipment, including computers came into use
- the general public — the people in a society; people in general
- the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
- the intelligentsia — the educated or intellectual people in a society or community
- the magnolia state — a nickname referring to Mississippi
- the middle passage — the journey across the Atlantic Ocean from the W coast of Africa to the Caribbean: the longest part of the journey of the slave ships sailing to the Caribbean or the Americas
- theodore gericault — (Jean Louis André) Théodore [zhahn lwee ahn-drey tey-aw-dawr] /ʒɑ̃ lwi ɑ̃ˈdreɪ teɪ ɔˈdɔr/ (Show IPA), 1791–1824, French painter.
- thermogalvanometer — a thermoammeter for measuring small currents, consisting of a thermocouple connected to a direct-current galvanometer.
- to take the plunge — If you take the plunge, you decide to do something that you consider difficult or risky.
- touch-in-goal line — either of the two touchlines at each end of the field between the goal line and the dead-ball line.
- wheelchair housing — housing designed or adapted for a chairbound person
- whispering gallery — a space or gallery beneath a dome or broad arch in which low sounds produced at any of certain points are clearly audible at certain other distant points.