close in

1 to come near or nearer <the eagle closed in on its prey> Synonyms belly up, close, approach, come up, draw on, near, nighRelated Words arrive, attain, come, gain, hit, land, make, reach, show up, turn up, waltz up; creep up, sneak up; adjoin, border, touch, vergeNear Antonyms clear out, depart, exit, go, leave, light out, pull out, quit, remove, run away, shove (off), take off, walk outAntonyms back (up or away), recede, retire, retreat, withdraw

2 to grow dark <with evening closing in we knew we had to find shelter fairly soon> Synonyms blacken, black out, darken, duskRelated Words dim, fade, wane; gloom, lower (also lour)Near Antonyms dawn; beam, glow, radiate, shineAntonyms brighten, light, lighten