Half track and Tracked vehicle

Half track noun - A motor vehicle propelled by half tracks; frequently used by the military.

Tracked vehicle and half track are semantically related. In some cases you can use "Tracked vehicle" instead a noun phrase "Half track".

Tracked vehicle noun - A self-propelled vehicle that moves on tracks.

Half track and tracked vehicle are semantically related. Sometimes you can replace phrase "Half track" with "Tracked vehicle", this phrases are similar.