Definitions:
modern

(especially in the early 1960s) a young person of a subculture characterized by a smart stylish appearance, the riding of motor scooters, and a liking for soul music.

a modification.

make modifications to; modify

a person who moderates an online forum or discussion; a moderator

(of the moderator of an online forum or discussion) delete (inappropriate or offensive content)

a highland meeting for gaelic literary and musical competitions.

(in the uk) ministry of defence.