We found 27 dictionaries that define the word watertight:

General (21 matching dictionaries)

1. watertight: Longman Dictionary of Contemporary English
2. watertight: Merriam-Webster
3. watertight: Oxford Learner's Dictionaries
4. watertight: American Heritage Dictionary of the English Language
5. watertight: Collins English Dictionary
6. watertight: Vocabulary.com
7. Watertight, watertight: Wordnik
8. watertight: Cambridge Advanced Learner's Dictionary
9. watertight: Wiktionary
10. watertight: Webster's New World College Dictionary, 4th Ed.
11. watertight: The Wordsmyth English Dictionary-Thesaurus
12. watertight: Infoplease Dictionary
13. watertight: Dictionary.com
14. watertight: Cambridge Essential American English Dictionary
15. Watertight: Wikipedia, the Free Encyclopedia
16. watertight: Rhymezone
17. watertight: FreeDictionary.org
18. watertight: Mnemonic Dictionary
19. watertight: TheFreeDictionary.com

Business (2 matching dictionaries)

20. Construction Term Glossary (No longer online)
21. watertight: Legal dictionary

Computing (1 matching dictionary)

22. watertight: Encyclopedia

Slang (1 matching dictionary)

23. Watertight: Urban Dictionary

Tech (2 matching dictionaries)

24. Lake and Water Word Glossary (No longer online)
25. SeaTalk Dictionary of English Nautical Language (No longer online)

(Note: See watertightness as well.)

Definitions from Wiktionary ( ) ▸ adjective:  So tightly made that water cannot enter or escape. ▸ adjective:  (figurative) So devised or planned as to be impossible to defeat, evade or nullify. Similar: leakproof, tight, seaworthy, unshakable, ironclad, incontestible, unassailable, incontestable, water-tight, staunch, more... Opposite: leaky, permeable, porous, unsealed, penetrable Types: airtight, waterproof, sealed, impermeable, more... Phrases: watertight compartments, watertight compartment, watertight bulkhead, make watertight, makes watertight, more... Adjectives: more, joint, less, longer, concrete, whole, closed, opening, pretty, entire, special Colors:     aqua,     teal,     turquoise,     cyan,     azure, more... ▸ Words similar to watertight ▸ Usage examples for watertight ▸ Idioms related to watertight ▸ Wikipedia articles (New!) ▸ Popular nouns described by watertight ▸ Words that often appear near watertight ▸ Rhymes of watertight ▸ Invented words related to watertight