Antonym: loosen, undo, untie. Similar words: melt, shelter, svelte, bell, below, label, rebel, be left. Meaning: [belt] 
n. 1. endless loop of flexible material between two rotating shafts or pulleys 2. a band to tie or buckle around the body (usually at the waist) 3. an elongated region where a specific condition is found 4. a vigorous blow 5. a path or strip (as cut by one course of mowing) 6. the act of hitting vigorously. v. 1. sing loudly and forcefully 2. deliver a blow to 3. fasten with a belt.
n. 1. endless loop of flexible material between two rotating shafts or pulleys 2. a band to tie or buckle around the body (usually at the waist) 3. an elongated region where a specific condition is found 4. a vigorous blow 5. a path or strip (as cut by one course of mowing) 6. the act of hitting vigorously. v. 1. sing loudly and forcefully 2. deliver a blow to 3. fasten with a belt. 
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31. The safety belt is easy to fit as there's no need to bolt it to seat belt anchorage points.
32. The fact I was wearing a seat belt saved my life.
33. He pierced another hole in his belt with his knife.
34. She can belt out a number with the best of them.
35. Despite the fact that she was wearing a seat belt, she was thrown sharply forward.
36. Buckle your seat belt.
37. He grew up in the comfort of the Surrey stockbroker belt.
38. She buckled her belt.
39. When Ted was six we decided that he needed to know how to fasten and unfasten his seat belt.
40. He cinched the belt of his knapsack around his shoulders.
41. His flashlight was still clipped to his belt.
42. If you don't shut up, I'll belt you .
43. Use a belt to accessorise a plain dress.
44. I've had to loosen my belt.
45. I bought a frame rucksack with belt yesterday.
46. Green belt development is carefully regulated.
47. Rolls of fat hung over his belt.
48. The belt won't go around my waist.
49. The moving belt feeds raw material into the machine.
50. She tightened her belt an extra notch.
51. Murray is a judo black belt.
52. At his belt he carried a rawhide whip.
53. He's a black belt at karate.
54. His big fat belly overhung his belt.
55. You must belt up before you start to drive.
56. Amy buckled the belt around her waist.
57. She wears a dress pouched over a belt.
58. She's got a brown belt in karate.
59. He sewed his money into his belt.
60. You must wear your seat belt.