Sentence:  Scores of transport planes streamed in to drop <WSD>stick</WSD> after <WSD>stick</WSD> of containers until the entire sky over the coast was polka-dotted with brightly coloured parachutes. 
Meaning of the word marked with <WSD> tags:  The structure to which a set of bombs in a bomber aircraft are attached and which drops the bombs when it is released. The bombs themselves and, by extension, any load of similar items dropped in quick succession such as paratroopers or containers.