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

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