We found 9 dictionaries that define the word IHO:

General (4 matching dictionaries)

1. Iho, iho: Wordnik
2. IHO: Dictionary.com
3. IHO: Wikipedia, the Free Encyclopedia
4. IHO: Wiktionary

Miscellaneous (3 matching dictionaries)

5. CIA World Factbook (No longer online)
6. IHO: Acronym Finder
7. AbbreviationZ (No longer online)

Tech (2 matching dictionaries)

8. IHO: GEOGRAPHIC INFORMATION SYSTEMS, CARTOGRAPHY, AND REMOTE SENSING
9. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)

Definitions from Wiktionary (IHO) ▸ noun:  Initialism of International Hydrographic Organization. ▸ Words similar to IHO ▸ Usage examples for IHO ▸ Idioms related to IHO ▸ Wikipedia articles (New!) ▸ Popular adjectives describing IHO ▸ Words that often appear near IHO ▸ Rhymes of IHO ▸ Invented words related to IHO