watershed.
The topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest.
Meaning & usage
The topographical boundary dividing two adjacent catchment basins, such as a ridge or a crest.
A region of land within which water flows down into a specified body, such as a river, lake, sea, or ocean; a drainage basin.
A critical point marking a change in course or development.
watershed moment — watershed event — watershed ruling
The time of day after which material of a more adult nature (e.g., violence, swear words, or nudity) may be broadcast on television or radio, either one permitted by law or one contrived from convention (e.g. when children are not watching).
Where this word comes from
From water + shed. A calque of German Wasserscheide.
Serving to mark a significant development, change in direction, etc.
Where this word comes from
From water + shed. A calque of German Wasserscheide.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.