We found 15 dictionaries that define the word spelunk:

General (12 matching dictionaries)

1. spelunk: Collins English Dictionary
2. spelunk: Vocabulary.com
3. spelunk: Wordnik
4. spelunk: Wiktionary
5. spelunk: The Wordsmyth English Dictionary-Thesaurus
6. spelunk: Infoplease Dictionary
7. spelunk: Dictionary.com
8. Spelunk: Wikipedia, the Free Encyclopedia
9. spelunk: Rhymezone
10. spelunk: FreeDictionary.org
11. spelunk: Mnemonic Dictionary
12. spelunk: TheFreeDictionary.com

Art (1 matching dictionary)

13. spelunk-: A Cross Reference of Latin and Greek Elements

Computing (1 matching dictionary)

14. spelunk: Encyclopedia

Slang (1 matching dictionary)

15. spelunk: Urban Dictionary

(Note: See spelunked as well.)

Definitions from Wiktionary (spelunk) ▸ noun:  (obsolete) A cave, cavern or grotto. ▸ verb:  To explore caves. ▸ verb:  To explore a system in depth. Similar: cave, spelunc, potholing, slugga, groop, burrow, slatterpouch, grot, vugh, groove, more... Opposite: surface, aboveground, outdoors Types: cave, cavern, cave system, cave network, cave passage, cave chamber, cave tunnel, more... ▸ Words similar to spelunk ▸ Usage examples for spelunk ▸ Idioms related to spelunk ▸ Wikipedia articles (New!) ▸ Popular adjectives describing spelunk ▸ Words that often appear near spelunk ▸ Rhymes of spelunk ▸ Invented words related to spelunk