knuckled down (verb) knuckle down: apply oneself
Sinonime: abreast, abutting,
adjacent, adjoining, along toward,
alongside, approximal,
around, at close quarters,
available,
beside, bordering,
burning,
close, close shave, close-at-hand, close-by, conterminous,
contiguous,
convenient, hair's breadth,
handy,
immediate, in close proximity, near-at-hand,
nearby, neighboring, next door, nigh, not remote,
practically, proximal, proximate,
ready, side-by-side,
touching, vincinal,
warm*, within stone's throw
Antonime: away,
distant,
far,
remote