Sentence:  ...her palfrey's footfall shot / Light horrors thro' her pulses: the blind walls / Were full of chinks and <WSD>holes</WSD>; and overhead / Fantastic gables, crowding, stared:... 
Meaning of the word marked with <WSD> tags:  A hollow place or cavity; an excavation; a pit; an opening in or through a solid body, a fabric, etc.; a perforation; a rent; a fissure.