• Bugger off: a Luthadrian expression equivalent to giving the middle finger. It originated from the era of slavery where slaves are viewed as animals, equal to bugs, hence the name bugger. This expression is considered provocative enough to start a fight.

• LNS: an acronym for Luthadrian National Service. It is used to designate any large vehicle (such as an airship or a warship) that serves the Luthadrian national services (such as the government or the military).

• VNS: an acronym for Valtassian National Service. It is used to designate any large vehicle (such as an airship or a warship) that serves the Valtassian national services (such as the government or the military).