Synonym: 15, XV, xv. Similar words: fifth, fifty, teen, gifted, teenage, teenager, lift, shift. Meaning: [‚fɪf'tɪːn] 
n. the cardinal number that is the sum of fourteen and one. adj. being one more than fourteen.
n. the cardinal number that is the sum of fourteen and one. adj. being one more than fourteen. 
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31. Fifteen scientists were massed against the proposal.
32. He was crowned king at the age of fifteen.
33. She was crowned queen at the age of fifteen.
34. He owns fifteen horses all told.
35. The room measures fifteen feet by twenty feet.
36. Three goes into fifteen five times.
37. About 800 athletes competed in fifteen events.
38. The score is tied, with fifteen minutes remaining.
39. We paid off our mortgage after fifteen years.
40. Six from fifteen leaves nine.
41. They hadn't lost an election in fifteen years.
42. My younger brother is fifteen.
43. I'm still due fifteen days' holiday.
44. 'He's fifteen years younger than you!' 'So what?'
45. About fifteen inmates broke through onto the roof.
46. We marched fifteen miles to Yadkin River.
47. They will lose at the worst only fifteen sheep.
48. A fifteen year old girl was among the injured.
49. There is a time lag of about fifteen years.
50. The duke first went into tails at only fifteen.
51. They've been at war for the last fifteen years.
52. The chicks hatch out after fifteen days.
53. The sum will be increased by fifteen per cent.
54. The policy matures after fifteen years.
55. There are fifteen of us in the group.
56. The number of passengers is limited to fifteen.
57. I hadn't seen him for fifteen years.
58. In India,(http://sentencedict.com/fifteen.html) there are fifteen official languages.
59. I send him fifteen dollars a month.
60. Fifteen percent will be charged on your taxable income.