Definition of "closely"

“King Homer” follows the story of King Kong closely, with Mr. Burns taking the freakishly over-sized King Homer from his native Africa, where he lives proud as a simian god, to the United States, where he is an initially impressive but ultimately rather limited Broadway attraction.

2012 April 29, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “Treehouse of Horror III” (season 4, episode 5; originally aired 10/29/1992)”, in (Please provide the book title or journal name)‎

That nought she did but wayle, and often steepe / Her dainty couch with tears which closely she did weepe.

1590, Edmund Spenser, “Book III, Canto II”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, stanza 28