23-letter words containing m, u, n, g
- saint george's mushroom — an edible whitish basidiomycetous fungus, Tricholoma gambosum, with a floury smell
- slum clearance campaign — a campaign to rehouse those people who live in a slum area, and to prepare the area for demolition and rebuilding
- speak the same language — to communicate with understanding because of common background, values, etc
- stimulus generalization — generalization (def 4a).
- stimulus-generalization — the act or process of generalizing.
- suprasegmental phonemes — phonemes or features of speech, as pitch, stress, and juncture, that may extend over and modify series of segmental phonemes
- system control language — (language) (SCL) The command language for the VME/B operating system on the ICL2900. SCL was block structured and supported strings, lists of strings ("superstrings"), integer, Boolean, and array types. You could trigger a block whenever a condition on a variable value occured. It supported macros and default arguments. Commands were treated like procedure calls.
- the numbers game/racket — If you refer to the numbers game, the numbers racket, or the numbers, you are referring to an illegal lottery or illegal betting.
- thompson submachine gun — a portable, .45-caliber, automatic weapon designed to be fired from the shoulder or hip.
- trans-new guinea phylum — the largest grouping of the non-Austronesian languages of Papua and New Guinea and the surrounding regions
- transcendental argument — an argument designed to make explicit the conditions under which a certain kind of knowledge is possible, esp those of Kant
- ulster defence regiment — a former reserve regiment of the British Army based in Northern Ireland
- wolfgang amadeus mozart — Wolfgang Amadeus [woo lf-gang am-uh-dey-uh s;; German vawlf-gahng ah-mah-dey-oo s] /ˈwʊlf gæŋ ˌæm əˈdeɪ əs;; German ˈvɔlf gɑŋ ˌɑ mɑˈdeɪ ʊs/ (Show IPA), 1756–91, Austrian composer.
- you can't go home again — a novel (1940) by Thomas Wolfe.