still adj.
1 not moving
VERBS be, hold, keep, lie, sit, stand, stay Hold still a minute while I pin your dress up. For goodness' sake, sit still! | hold sb/sth, keep sb/sth I held the cat still while the vet gave the injection.
ADV. very | absolutely, quite, stock-He stood stock-still, hardly daring to breathe.
2 calm and quiet
VERBS be, look, seem | become, go Suddenly everything went still. | remain
ADV. very | completely It was a completely still, warm evening. | strangely The air was strangely still and silent.
You can also check other dicts: still (English, 中文解释 ), wordnet sense, Collins Definition