<col>Domino theory</col>. A political theory current in the 1960's, according to which the conversion of one country in South Asia to communism will start a sequential process causing all Asian countries to convert to Communism. The apparent assumption was that an Asian country with a Western orientation was as politically unstable as a domino standing on edge. Used by some as a justification for American involvement in the Vietnam war, 1964-1972. -->
<h1>Dominus</h1> <Xpage=444>
<hw>Dom"i*nus</hw> <tt>(?)</tt>, <tt>n.</tt>; <plu>pl. <plw>Domini</plw> <tt>(#)</tt></plu>. <ety>[L., master. See <er>Dame</er>.]</ety> <def>Master; sir; -- a title of respect formerly applied to a knight or a clergyman, and sometimes to the lord of a manor.</def>
<i>Cowell.</i>
<h1>Domitable</h1> <Xpage=444>
<hw>Dom"i*ta*ble</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[L. <ets>domitare</ets> to tame, fr. <ets>domare</ets>.]</ety> <def>That can be tamed.</def> <mark>[R.]</mark>
<i>Sir M. Hale.</i>
<h1>Domite</h1> <Xpage=444>
<hw>Do"mite</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Min.)</fld> <def>A grayish variety of trachyte; -- so called from the Puy-de-<i>D\'93me</i> in Auvergne, France, where it is found.</def>
<h1>Don</h1> <Xpage=444>
<hw>Don</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Sp. <ets>don</ets>; akin to Pg. <ets>dom</ets>, It. <ets>donno</ets>; fr. L. <ets>dominus</ets> master. See <er>Dame</er>, and cf. <er>Domine</er>, <er>Dominie</er>, <er>Domino</er>, <er>Dan</er>, <er>Dom</er>.]</ety>
<p><b>1.</b> <def>Sir; Mr; Signior; -- a title in Spain, formerly given to noblemen and gentlemen only, but now common to all classes.</def>
<blockquote>Don is used in Italy, though not so much as in Spain France talks of <b>Dom</b> Calmet, England of <b>Dom</b> Calmet, England of <b>Dan</b> Lydgate. <i>Oliphant.</i></blockquote>
<p><b>2.</b> <def>A grand personage, or one making pretension to consequence; especially, the head of a college, or one of the fellows at the English universities.</def> <mark>[Univ. Cant]</mark> "The great <i>dons</i> of wit."
<i>Dryden.</i>
<h1>Don</h1> <Xpage=444>
<hw>Don</hw>, <tt>v. t.</tt> <wordforms>[<tt>imp. & p. p.</tt> <er>Donned</er> <tt>(?)</tt>; <tt>p. pr. & vb. n.</tt> <er>Donning</er>.]</wordforms> <ety>[<ets>Do</ets> + <ets>on</ets>; -- opposed to <ets>doff</ets>. See <er>Do</er>, <tt>v. t.</tt>, 7.]</ety> <def>To put on; to dress in; to invest one's self with.</def>
<blockquote>Should I <b>don</b> this robe and trouble you. <i>Shak.</i></blockquote>
<blockquote>At night, or in the rain, He <b>dons</b> a surcoat which he doffs at morn. <i>Emerson.</i></blockquote>
<h1>Do\'a4a</h1> <Xpage=444>
<hw>Do"\'a4a</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Sp. <ets>do\'a4a</ets>. See <er>Duenna</er>.]</ety> <def>Lady; mistress; madam; -- a title of respect used in Spain, prefixed to the Christian name of a lady.</def>
<h1>Donable</h1> <Xpage=444>
<hw>Do"na*ble</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[L. <ets>donabilis</ets>, fr. <ets>donare</ets> to donate.]</ety> <def>Capable of being donated or given.</def> <mark>[R.]</mark>
<h1>Donary</h1> <Xpage=444>
<hw>Do"na*ry</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[L. <ets>donarium</ets>, fr. <ets>donare</ets>.]</ety> <def>A thing given to a sacred use.</def> <mark>[R.]</mark>
<i>Burton.</i>
<h1>Donat</h1> <Xpage=444>
<hw>Don"at</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[From <ets>Donatus</ets>, a famous grammarian.]</ety> <def>A grammar.</def> <mark>[Obs.]</mark> <altsp>[Written also <asp>donet</asp>.]</altsp>
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