# spelunker

> English word · Noun

## Definitions
1. One who explores caves; one who spelunks.
2. An amateur or inadequately prepared caver.

## Etymology
From then-obsolete spelunk (noun) + -er. Coined by New England cave explorer Roger Charles Johnson in the 1930s.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/spelunker