blank adj.
1 with nothing written, recorded, etc. on
VERBS be | go The screen's gone blank. | remain | leave sth I left the third column blank.
ADV. completely, entirely
2 without emotion/interest/understanding
VERBS be, look Gina looked blank; then understanding dawned. | go What if my mind goes completely blank with panic? | remain
ADV. completely | studiously His expression remained studiously blank.
blank noun
1 empty space on paper
VERB + BLANK fill in In the test, we had to fill in the blanks. | leave If you don't know the answer, just leave a blank.
2 cartridge for a gun
VERB + BLANK fire Soldiers fired blanks into the sky.
You can also check other dicts: blank (English, 中文解释 ), wordnet sense, Collins Definition