18-letter words containing a, m, b, i, t
- the-master-builder — a play (1892) by Ibsen.
- timber rattlesnake — a rattlesnake, Crotalus horridus horridus, of the eastern U.S., usually having the body marked with dark crossbands.
- transfinite number — an infinite cardinal or ordinal number.
- transmission brake — A transmission brake is a brake that operates on the transmission system of a vehicle rather than directly on the wheels.
- urban homesteading — homesteading (def 2).
- vitelline membrane — the membrane surrounding the egg yolk.
- white man's burden — the alleged duty of white colonizers to care for nonwhite indigenous subjects in their colonial possessions.
- whittaker chambers — Robert, 1802–71, Scottish publisher and editor.
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.
- wingback formation — single wingback formation.
- women's liberation — a movement to combat sexual discrimination and to gain full legal, economic, vocational, educational, and social rights and opportunities for women, equal to those of men.