Sentence:  In addition to the rich soil they benefit by feedings of manure <WSD>water</WSD> every other week , diluted to the color of weak tea . 
Meaning of the word marked with <WSD> tags:  binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent