# castler

> English word · Noun

## Definitions
1. A chess problem whose solution involves castling.
2. A player who castles.

## Etymology
From castle + -er (patient suffix) or + -er (agent noun suffix). Piecewise doublet of casteller.

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