'gag

འགག
1) obstruction/ stoppage; 2) be obstructed; 3) crucial point/ pith; 4) stop, cease [IW]

1) obstruction, stoppage. 2) crucial point, pith, to stop, cease p. Syn bgag, mdo 'gags condensed into one. gdangs ma 'gag unobstructed manifestation. gnad 'gag put into a single point. spyi 'gag avenue [RY]

stumbling block [RY]

vanish, cease to exist, cease to be relevant obstruction, stoppage, place that has to be passed by all that proceed to a certain point, narrow passage [JV]

significance/ significant point/ implication [RB]