Dacninae is a subfamily of longhorn beetles that includes over 1,000 species. While there may not be many commonly known synonyms for the word "Dacninae," there are some related terms that could be useful for understanding this group of insects. For example, longhorn beetles are characterized by their long antennae and distinctive body shape, so phrases like "longhorn beetle subfamily" or "antler beetles" could be used to describe Dacninae. Additionally, terms like "wood-boring beetles" or "tree borers" could be used to describe these insects' behavior of tunneling into wood to lay eggs and feed on the tree's sap.