名詞 close up:

1. a photograph taken at close range
   同義詞：closeup

動詞 close up:

1. cease to operate or cause to cease operating
   同義詞：close, fold, shut down, close down
2. block passage through
   同義詞：obstruct, obturate, impede, occlude, jam, block
3. unite or bring into contact or bring together the edges of
   同義詞：close
4. refuse to talk or stop talking; fall silent
   同義詞：clam up, dummy up, shut up, belt up, button up, be quiet, keep mum

副詞 close up:

1. very close
   同義詞：at close range

1. She snuggled close up to him.
   她緊緊地挨著他。
2. Sorry, madam, we're closing up for lunch.
   很抱歉，小姐，我們現在要關門吃午飯。