Lanner is a term that is used to describe a specific type of bird of prey, known for its swift attacks and impressive speed. Some possible synonyms for lanner might include peregrine falcon, gyrfalcon, or even saker falcon, depending on the specific characteristics of the bird in question. Other potential synonyms could include hunter, predator, or hawk, as lanner birds are often associated with these qualities. Ultimately, the right synonym for lanner will depend on the context in which the word is being used, as well as the specific attributes that are being highlighted.