to fail to happen
провалиться (pro-va-lyt'sya)
"Our travel plans might fall through if the storm hits."
"Наши планы путешествий могут провалиться, если начнется шторм." (Nashi plany puteshestviy mogut pro-valit'sya, yesli nachnyotsya shtorm.)
something that no longer exists or happens
to trust someone with something important
to send too many messages or unnecessary information
to reduce or eliminate feelings of anxiety or pressure
to reach the highest point of success
to be in a very dangerous or uncertain situation