keep under one's hat

conceal deduct deny detain hide keep refuse resist retain suppress

abstain bridle check constrain curb disallow hold inhibit kill refrain repress reserve restrain spike

clam up dummy up hold back hold down hold out hold out on keep secret keep to oneself keep under wraps sit on stop oneself

allow disclose divulge expose free go along grant lay bare let go let out open release reveal show tell uncover

aid assist help indulge liberate permit use