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billionaire Syllabification: bil·lion·aire
Pronunciation: /ˌbilyəˈner/

Definition of billionaire in English:

noun

A person possessing assets worth at least a billion dollars (or pounds, etc.).
Example sentences
  • Melbourne is filling with tycoons, moguls, magnates, billionaires and mere millionaires.
  • And there are multi-millionaires and billionaires earning hundreds of millions of dollars per year.
  • Last year there were 497 billionaires with a net worth of 1.54 trillion dollars.

Origin

Mid 19th century: from billion, on the pattern of millionaire.

Words that rhyme with billionaire

affair, affaire, air, Altair, Althusser, Anvers, Apollinaire, Astaire, aware, Ayer, Ayr, bare, bear, bêche-de-mer, beware, Blair, blare, Bonaire, cafetière, care, chair, chargé d'affaires, chemin de fer, Cher, Clair, Claire, Clare, commissionaire, compare, concessionaire, cordon sanitaire, couvert, Daguerre, dare, debonair, declare, derrière, despair, doctrinaire, éclair, e'er, elsewhere, ensnare, ere, extraordinaire, Eyre, fair, fare, fayre, Finisterre, flair, flare, Folies-Bergère, forbear, forswear, foursquare, glair, glare, hair, hare, heir, Herr, impair, jardinière, Khmer, Kildare, La Bruyère, lair, laissez-faire, legionnaire, luminaire, mal de mer, mare, mayor, meunière, mid-air, millionaire, misère, Mon-Khmer, multimillionaire, ne'er, Niger, nom de guerre, outstare, outwear, pair, pare, parterre, pear, père, pied-à-terre, Pierre, plein-air, prayer, questionnaire, rare, ready-to-wear, rivière, Rosslare, Santander, savoir faire, scare, secretaire, share, snare, solitaire, Soufrière, spare, square, stair, stare, surface-to-air, swear, Tailleferre, tare, tear, their, there, they're, vin ordinaire, Voltaire, ware, wear, Weston-super-Mare, where, yeah

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Pronunciation: fɔːˈtɪsɪməʊ
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(especially as a direction) very loud or loudly