Meaning: [em] 
n. 1. the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) 2. concentration measured by the number of moles of solute per liter of solution 3. the cardinal number that is the product of 10 and 100 4. the 13th letter of the Roman alphabet. adj. denoting a quantity consisting of 1,000 items or units.
n. 1. the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) 2. concentration measured by the number of moles of solute per liter of solution 3. the cardinal number that is the product of 10 and 100 4. the 13th letter of the Roman alphabet. adj. denoting a quantity consisting of 1,000 items or units. 
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181. They came bombing through the square on their motorcycles at 4 p.m.
182. He presented himself at the doctor's at 9.30 a.m. as arranged.
183. I don't know why he did that, but I' m sure he had his reasons.
184. A new comedy is scheduled for the 9 p.m. time slot .