Definitionen
1.NounThe topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest.
2.NounA region of land within which water flows down into a specified body, such as a river, lake, sea, or ocean; a drainage basin.
3.NounA critical point marking a change in course or development.
4.NounThe time during the day in which material of a more adult nature (e.g., violence, swear words, or sex) may be broadcast on television or radio, either one permitted by law or one contrived from convention (e.g. when children are not watching).
5.AdjectiveServing to mark a significant development, change in direction, etc.