Definitions
1.AdjectiveConcerning the relationships between the governments of countries."She spent thirty years working for Canada's diplomatic service.; Albania immediately severed diplomatic relations with Zimbabwe."
2.AdjectiveExhibiting diplomacy; exercising tact or courtesy; using discussion to avoid hard feelings, fights or arguments."Thoughtful corrections can be diplomatic as well as instructional."
3.AdjectiveDescribing a publication of a text which follows a single basic manuscript, but with variants in other manuscripts noted in the critical apparatus.
4.AdjectiveRelating to diplomatics, or the study of old texts; paleographic.
5.NounThe science of diplomas, or the art of deciphering ancient writings and determining their age, authenticity, etc.; paleography.