Sentence:  His bill , allegedly aimed at Hoffa , would amend the Sherman , Clayton and Norris-LaGuardia acts to authorize the issuance of federal injunctions in any transportation strike and would <WSD>make</WSD> it illegal for any union to act in concert with any other union - even a sister local in the same international . 
Meaning of the word marked with <WSD> tags:  give certain properties to something