Synonym: advance, beam, flourish, gain, grow, increase, pole, progress, roar, rumble, swell, thrive, thunder. Antonym: slump. Similar words: room, book, boot, booth, boost, bedroom, book for, bathroom. Meaning: [buːm] 
n. 1. a deep prolonged loud noise 2. a state of economic prosperity 3. a sudden happening that brings good fortune (as a sudden opportunity to make money) 4. a pole carrying an overhead microphone projected over a film or tv set 5. any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring. v. 1. make a resonant sound, like artillery 2. hit hard 3. be the case that thunder is being heard 4. make a deep hollow sound 5. grow stronger.
n. 1. a deep prolonged loud noise 2. a state of economic prosperity 3. a sudden happening that brings good fortune (as a sudden opportunity to make money) 4. a pole carrying an overhead microphone projected over a film or tv set 5. any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring. v. 1. make a resonant sound, like artillery 2. hit hard 3. be the case that thunder is being heard 4. make a deep hollow sound 5. grow stronger. 
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61. Growth in air travel is fuelling the boom.
62. The fitness boom started in the 1970s.
63. Unfortunately, the hoped-for investment boom did not materialize.
64. During boom times, businesspeople and tourists crowd the skies.
65. And really it was a boom town.
66. A more pressing problem is Mexico's dramatic baby boom.
67. He says they haven't had the economic boom.
68. Is an economic boom an unsustainable trend?
69. There was a property boom in the seventies.
70. Witnesses heard the first loud boom at 3:03 p.m.
71. For Sharm el Sheikh is a boom town.
72. The boom years brought by Brian Little have gone.
73. Businessmen are enjoying their first boom for ten years.
74. This was 1869, a quarter century before the great bicycle boom, a time before bicycles were bicycles at all.
75. A financial panic ensued, as frantic as the earlier boom.
76. The boom period ensured that every prairie city had two and sometimes three stations, some of them very short-lived indeed.
77. Who could foresee the sonic boom when the needle finally hit the groove on my cheap record changer?
78. As the heritage boom gathers pace, made-to-measure company and family biographies have become big business.
79. This boom in fast food is providing strong competition for both staff restaurants and school meal services.
80. That is where so much of the consumer boom of the 1980s came from.
81. In response to the marriage boom, fertility reached an all-time high at around 1800.
82. This was the early-eighties and Britain was clawing its way out of recession on the back of a demand-led boom.
83. They cost around ￡60a-week, but if there's been a baby boom in the area prices can double!
84. First, the postwar boom in college enrollments raised levels of civic engagement, offsetting the generational trends.
85. Fifty years ago, the United States first met the postwar baby boom without enough pediatricians, schools, jobs or housing.
86. The boom years of the 1980s, however,[www.Sentencedict.com] have seen private-sector profitability soar.
87. A loud sonic boom was heard by observers on shore.
88. The choice of suitable premises in Newport at the height of the property boom was not large.
89. The IT market is growing, thanks to the Internet boom.
90. In the intermediate zone between a population boom and a population bust, this superfluous genetic material is pruned out.