What does the word obstruction mean?

Usage examples for obstruction

  1. If, for instance, a piece of artillery was fast in the mud, the infantry and cavalry passing around the obstruction would rack their brains for words and phrases applicable to the situation, and most calculated to worry the cannoniers, who, waist deep in the mud, were tugging at the wheels. – Detailed Minutiae of Soldier life in the Army of Northern Virginia, 1861-1865 by Carlton McCarthy
  2. The intervening forest concealed from Sherman the fact that, though he was more than three miles from the town, he was now less than a mile from the main defences of Corinth, that he was between the creeks, and there was no obstruction but the forest between him and the works. – From Fort Henry to Corinth by Manning Ferguson Force
  3. In the meanwhile I offer no further obstruction to the course which you propose taking. – The New Magdalen by Wilkie Collins