Sentence:  A Highway Department source said there also is a plan there to issue some $ 3 million to $ 4 million worth of Rural Roads Authority <WSD>bonds</WSD> for rural road construction work . 
Meaning of the word marked with <WSD> tags:  a certificate of debt (usually interest-bearing or discounted) that is issued by a government or corporation in order to raise money; the issuer is required to pay a fixed sum annually until maturity and then a fixed sum to repay the principal