Loading word page…
Updated June 2026
A pile of objects placed one on top of another in an orderly way.
“She organized the books in a neat stack.”
Contains double consonants -CK and starts with ST.
Worth 11 points; C and K provide good scoring potential.
Change a single letter of “stack” to make these 5-letter words — useful for Wordle and crossword clues.
Look up stack in an authoritative dictionary for full definitions, pronunciation, and etymology.

Download Word Challenge for unlimited word puzzles, a fresh Daily Challenge, and head-to-head multiplayer. Guess the hidden word in six tries or fewer!