you can just say entity X is entity Y but Z or something. But to be safe, make sure the original entity is refered first (above the derived entity in the entity list)
for now i'll just say "the description of X applies to Y" can i also do this for the dictionary? or should i copy and paste it and change up a few things to make it fit with the new entity
for dictionary entry, you can still refer to an existing entity, but probably not other dictionary entries because you can’t be sure that the other entry is mentioned or not