trip over

determine gain hear see understand

ascertain detect discern gather tumble uncover unearth

catch on dig up smoke out stumble upon

ignore miss overlook

teach

detect discover establish pinpoint spot station strike uncover unearth

determine hook place position read

come across come upon ferret out get at happen upon hit upon lay one's hands on light upon meet with pick up on pin down search out smell out smoke out stumble on track down zero in on

lose miss overlook pass by

displace

depart leave move