Does Booming Blade movement refer only to overland movement?

@JeremyECrawford In SCAG, under Booming Blade, does movement refer only to overland movement, or any movement (like an attack, waving, etc.)

— Jeff Venancio (@Hageshii01) October 26, 2015

When booming blade refers to moving, it means movement in the game's normal sense: moving X feet. #DnD https://t.co/mpCl4PNNI3

— Jeremy Crawford (@JeremyECrawford) October 28, 2015