1
general::
1. Be classified as, as in These scores fall under choral music. [Mid-1400s] 2. Be subject to, as in This precinct falls under the city's jurisdiction. [Second half of 1500s]
American Heritage Idioms
2
general::
Phrase(s): fall under someone or something
to drop down and end up beneath someone or something. • The old man fell under the wheels of the truck, but he suffered only minor injuries. • The child tripped and fell under Mrs. Rogers, who almost did not see her.
McGrawhill's American Idioms And Phrasal Verbs