Sentence:  He also wanted to found a colony of plebeians on the ruins of Carthage, and when his <WSD>tribuneship</WSD> was over he went to Africa to see about it; but when he came home the patricians had arranged an attack on him, and he was insulted by the lictor of the consul Opimius. 
Meaning of the word marked with <WSD> tags:  The period in which a person serves as tribune