close up
     adv : very close; "without my reading glasses I can hardly see
           things close up"; "even firing at close range he
           missed" [syn: {at close range}]
     v 1: block passage through; "obstruct the path" [syn: {obstruct},
           {obturate}, {impede}, {occlude}, {jam}, {block}] [ant:
          {free}]
     2: refuse to talk or stop talking; fall silent; "The children
        shut up when their father approached" [syn: {clam up}, {dummy
        up}, {shut up}, {belt up}, {button up}, {be quiet}, {keep
        mum}] [ant: {open up}]
Source: WordNet® 2.0