crust (noun, verb) /krʌst/ LISTEN
The crust is the outer part of a loaf of bread that becomes hard in the oven, and it is also the pastry or breadlike part of a pie or pizza. Crust also refers to any hard outside coating of something that is soft in the inside, or the hard shell of some animals. As a verb, it means ‘to form into a hard outside layer.’
- The baker took the loaves out of the oven when their crusts were hard and golden.
- Now that you've put the filling in your pie, you need to cover it with the crust.
- Emily doesn't like pizza crusts and always refuses to eat them.
- The snow crunched as our boots broke through the crust.
- The lobster shed its crust.
- It was a nasty cut, but the surface soon crusted into a scab.
Words often used with crust
upper crust: an informal term for the upper class. Example: “Only the upper crust of the movie industry stay in that hotel.”
The upper layer of the Earth is also known as the crust.
In pop culture
Listen to Steve Hackett singing “Take These Pearls” here. Listen out for the lyric “From the crust of the earth to the limits of the sky.”
Did you know?
In the UK, it is not uncommon to hear parents tell their children “Eat your crusts; it’ll make your hair curl.” However, there is no evidence of any truth to this old wives’ tale.
crusty (adjective), crustless (adjective), crustal (adjective)
Crust, meaning ‘the hard, outer part of bread,’ dates back to the late 13th century. It came into English from the Anglo-French and Old French cruste or croste. It can be traced back to the Latin crusta (hard outer covering) and the Proto-Indo-European root kreus– (to begin to freeze or to form a crust). Crust is related to the French croûte, the Spanish costra, the Italian crosta, and the Portuguese crosta (all meaning ‘crust,’ as well as ‘rind’ or ‘scab’), as well as the Sanskrit krud– (to make hard or thicken), the Avestan xruzdra– (hard), the Greek krystallos (ice or crystal) and kryos (icy cold or frost), the Lettish kruwesis (frozen mud), the Old High German hrosa (ice or crust) and the Old Norse hroðr (scurf), along with many English words, including crouton, cetacean, cryogenic, crystal and custard. The sense expanded to ‘any hard, external part’ in the mid-15th century, and has been used to describe the outer layer of the Earth since the mid-16th century. The verb, meaning ‘to thicken or contract into a hard covering,’ dates back to the late 14th century and comes from the noun. The transitive sense ‘to cover with a crust or hard external portion,’ appeared in the mid-16th century.
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