1con·voy 
/ˈkɑ:nˌvoɪ/ noun
plural con·voys /ˈkɑ:nˌvoɪ/ noun : a group of vehicles or ships that are traveling together usually for protection [count] ▪ a military convoy ▪ a long convoy of trucks ▪ The President always travels in a convoy. ▪ The United Nations is sending an aid/relief convoy. [=a group of vehicles carrying food and supplies] [noncount] ▪ The ships were sailing in convoy. [=together in a line]
