We found 25 dictionaries that define the word high water:

General (19 matching dictionaries)

1. high-water, high water: Merriam-Webster
2. high water: Oxford Learner's Dictionaries
3. high water: American Heritage Dictionary of the English Language
4. high water: Collins English Dictionary
5. high water: Vocabulary.com
6. high-water, high water: Wordnik
7. high water: Cambridge Advanced Learner's Dictionary
8. high-water, high water: Wiktionary
9. high water: The Wordsmyth English Dictionary-Thesaurus
10. high water: Infoplease Dictionary
11. High water, high-water, high water: Dictionary.com
12. High Water (El-P album), High Water (For Charley Patton), High Water (disambiguation), High Water, High water: Wikipedia, the Free Encyclopedia
13. high water: Rhymezone
14. high-water, high water: FreeDictionary.org
15. high water: Mnemonic Dictionary
16. high-water, high water: TheFreeDictionary.com
17. high water: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

18. Abbreviations in shipping (No longer online)

Computing (1 matching dictionary)

19. high-water, high water: Encyclopedia

Slang (1 matching dictionary)

20. high water: Green’s Dictionary of Slang

Tech (3 matching dictionaries)

21. Glossary of Meteorology (No longer online)
22. Lake and Water Word Glossary (No longer online)
23. SeaTalk Dictionary of English Nautical Language (No longer online)

(Note: See high_waters as well.)

Definitions from Wiktionary (high water) ▸ noun:  (uncountable) The location of high tide on a coastal area. ▸ noun:  The state of the tide when the water is at its highest. ▸ noun:  (countable) The highest stage of a river. Similar: high tide, highwater, hightide, acqua alta, waterhead, highland, highth, high ground, highte, horst, more... Opposite: low tide, ebb tide Types: high tide, low tide, mid tide, spring tide, neap tide, king tide, more... Phrases: High water mark, come hell or high water, high water marks, hell or high water, mean high water, more... ▸ Words similar to high water ▸ Usage examples for high water ▸ Idioms related to high water ▸ Wikipedia articles (New!) ▸ Words that often appear near high water ▸ Rhymes of high water ▸ Invented words related to high water