Definition: "old stables"

This is a homophone - look for a word that indicates something sounds like another word when spoken aloud.

"Aloud" is the homophone indicator. You need to find a word meaning "ponder" that sounds like the answer when spoken.

Answer: MEWS | "Aloud" indicates a homophone - sounds like "muse" (to ponder) = MEWS (old stables, originally for horses)